Database Develop

[GUIDE] Install GSI on U.S. Snapdragon S9/S9+ [U/U1 Variants]

So...
The U.S. variants finally have root, this is a very exciting moment for S9/N9/S9+/N9+ users that always wanted to do more with your device. I wanted to create this thread separate from the root thread as I think GSIs are a whole different thing. It's actually pretty simple once you've read, understood and even tried the root method running Oreo Samsung Experience. The steps are very similar but you just swap out the system image.
So please, take the time to read the thread for the Extreme Syndicate root method here: https://forum.xda-developers.com/ga...pment/root-t4041815/post81608559#post81608559
I am going to quote some of the stuff in that thread directly as all of it still applies here.
Please take your time and make sure you follow the instructions carefully.
This method is brought to you entirely by @elliwigy He is the reason for this exploit and method.
With that being said, Extreme Syndicate Root is now available!
​
Disclaimer:
The Extreme Syndicate team and it's affiliates are not responsible for your actions or your device if any issues are to arise. You flash this and utilize these files at your own risk. You have been warned!
The Adventure!:
I will not get into any technical details here. Just know that this method has taken me ~1 year from start to finish. I also went through a number of devices during this time (at least 7 devices), even sold my original N9 then somehow ended up with another one before this root method was found. Some of us devs might be a bit burnt out so don't get upset if we are not in here all day every day answering everyones questions. We hope users will help eachother, that is what XDA is all about! Also, if you want more real time conversation/support then please join our Telegram group (link posted below) as this is easier for us to moderate and allows discussion to be had in real time. I don't always check XDA messages or PM's as it can be a lot and very tiresome so your best bet is Telegram!
Also, donations/money is not expected or required but if you feel obliged to share what you can then that would be greatly appreciated! Donations keep me on the grind and sometimes can even help me in acquiring other devices to work on. I had issues with Paypal a while back (SamPWND days) and do not have a Paypal account. I do however have a Venmo and Transferwise accounts that work in most situations.
Venmo - http://www.venmo.com/Thomas-Huntington-10
Transferwise - PM @elliwigy for info to donate using Transferwise.
Now Let's get into the files/method!
Click to expand...
Click to collapse
INSTRUCTIONS:
1. Download the following:
- Root files from Extreme Syndicate that belong to your device
- The GSI you want to download (for these devices you need arm64 a-only. With gapps included should be your priority)
- Sh remover zip uploaded here.
- Alternative: ODM nosu zip
2. In odin folder flash the combo firmware
3. Once combo is booted up run the root bat. When done phone will reboot to download.
4. In odin flash the bootswap.tar.md5 file. What this does is swaps the boot and recovery images which allows system to be mounted rw.
5. Now when done flashing you need to hold the buttons to boot to recovery but since we swapped boot and recovery images it will boot system.
6. Now put your phone in airplane mode. This must be done whenever using Flashfire. Copy the system.img (your GSI img) , vendor.img, Sh remover.zip and ODM zip files to your phone.
- NOTE: Flashfire doesn't let you chose the partition on where it's going to flash any image. It decides on where to flash based on the name of the image. So if your gsi is named GSIName-arm64-a-nosu.img then flashfire will have no idea where to flash it. I would rename the img to something like system-GSIName-arm64-a-nosu.img.... or just system.img lol
- NOTE 2: I uploaded a ODM NOROOT.zip. Reason being that some gsi come preloaded with supersu. In theory, using the regular ODM_ROOT.zip from the Extreme Syndicate method should work fine even if the GSI comes prerooted, I just didn't test it with that lol. You should definitely use the root variant if the GSI doesn't say it comes rooted.
7. In Flashfire, choose zip and select the odm zip (root or unrooted, your choice. Read note above). Make sure you select "Mount /system read/write" when the Options pop up. This is necessary or else it will not boot, always chose this on everything. Then choose firmware and choose the system.img and the vendor.img. Then choose data wipe and wipe user and system data (the default choices). Make sure inject super su is NOT enabled. Disable it. Do not let flashfire inject root!!. Then choose zip again and select the Sh remover.zip (select to mount system read/write)
- NOTE: I added the Sh remover zip because some GSI (particularly Android 9 GSI) have a track record of having some problems booting up in Samsung devices. This zip should remove the system/bin/rw_system.sh file. There's no bad side of not having this file on GSI's that don't share this problem, so I'm making it a mandatory step to avoid as much problems as possible
8.. Now click flash. When finished you will have to hold buttons to reboot to recovery until you see boot animation. You must do this on every reboot. If you do not it will reboot to stock recovery. If it reboots to stock recovery just reboot system and hold buttons to reboot to recovery again.
9. When rom is booted up your computer will not recognize the phone for mtp file transfer. Adb does still work so you can transfer stuff that way (you need to switch to ptp transfer method in the dropdown) or use USB adapter and use a thumb drive.
10. Biometrics do not work so don’t try to setup fingerprint or face recognition.
And that's it, you should have your GSI up and running.
Let's keep all the GSI talk on this thread please. I will do my best to keep this thread updated with fixes, compatibility and news. For now, take a look at the confirmed working GSI:
Confirmed working:
- PHH Android 9 GSI
- HavocOS 2.9
- PHH Android 10 GSI (Added bug: WiFi is broken, working on a fix)
Confirmed not working:
- Pixel Experience Android 9
- OxygenOS (Erfan's GSI) (I wouldn't recommend GSI from other OEMs anyway)
ShoutOuts:
@elliwigy For the method and help and everything else
@klabit87 - Ditto
@me2151 - Ditto
@gsm-CHEN - Ditto
@jrkruse - For all the help and support for S9 variants
@everyone else I am forgetting!
ENJOY!

Join is in Telegram where we can discuss GSI and help with problems more quickly
Link: https://t.me/joinchat/HYvgAlUgyqKq9__Y5yg1uA

Reserved 2

Nice guide! I'm sure you'll have plenty of input from others that have tested various gsi.

klabit87 said:
Nice guide! I'm sure you'll have plenty of input from others that have tested various gsi.
Click to expand...
Click to collapse
That's the plan. To hopefully fill this thread with GSIs that work, the ones that don't and any additional fixes to get some to boot.

Great news. Seems HavocOS 2.9 (Android 9) boots pretty well. This is great! Udating post to add link.
EDIT: Also added PHH Android 10. It boots!

just so everyone knows, so far the bugs with the PHH 9 GSI is that no mobile data,messaging and calling will work.

Root on "U" variants! Wahooooo!! Ooo! Ooo!
Anyway, I've been doing this since the galaxy s3 and jailbreaking iPhone since the 3gs... but it's not a every day thing for me and I would assume the same for many others. I do it full tilt "all of my personal time" for a few months get stuff working, backup and then go about my business. I have been forced to switch from my beloved note 4 to this corporate controlled piece or Samsung stuff for $1K and finally someone hacked it! Well done and thank you soooooo very much!!
Anyway, this GSI thing is entirely new to me. I dont know what it is, how it works, what is means etc... it seems to be a relatively new thing. Maybe within the past year or so?
So what I would recomend and ask for is a brief history and explanation of what it is and what is does, where it came from etc... does it make my touchwiz phone like stock android? What aspect of the rom does it replace? System.img I assume but why is it needed? What is the reason it's not needed for Android 8 but is needed for 9 and up?
Of course all of us can google it and and wade through all the documentation on it which I will do and eventually figure it out but I noticed on telegram there are a ton of questions about it since, well, almost everyone has Android 9 on their devices. So it might help in reducing the repetitive questions if there was a quick but detailed write up on GSI from some of you ultra smart type peeps that know about it. My guess is most people won't spend the necessary time required to research GSI which can take days, weeks, months... some of us have kids and demanding jobs and have to cook, clean, repair, work, doctors, school, etc etc.. while others such as myself have opted to go the route of a professional career with no kids and can spend the time researching... Just a suggestion...
Again thank you to all the super smart type fellas and ladies aka DEVs that continue to fight the good fight and make this entire thing possible for the rest of us that are less capable in this area of expertise . You guys rock! Like kick serious @$$ kinda rock!

Zaileion said:
Root on "U" variants! Wahooooo!! Ooo! Ooo!
Anyway, I've been doing this since the galaxy s3 and jailbreaking iPhone since the 3gs... but it's not a every day thing for me and I would assume the same for many others. I do it full tilt "all of my personal time" for a few months get stuff working, backup and then go about my business. I have been forced to switch from my beloved note 4 to this corporate controlled piece or Samsung stuff for $1K and finally someone hacked it! Well done and thank you soooooo very much!!
Anyway, this GSI thing is entirely new to me. I dont know what it is, how it works, what is means etc... it seems to be a relatively new thing. Maybe within the past year or so?
So what I would recomend and ask for is a brief history and explanation of what it is and what is does, where it came from etc... does it make my touchwiz phone like stock android? What aspect of the rom does it replace? System.img I assume but why is it needed? What is the reason it's not needed for Android 8 but is needed for 9 and up?
Of course all of us can google it and and wade through all the documentation on it which I will do and eventually figure it out but I noticed on telegram there are a ton of questions about it since, well, almost everyone has Android 9 on their devices. So it might help in reducing the repetitive questions if there was a quick but detailed write up on GSI from some of you ultra smart type peeps that know about it. My guess is most people won't spend the necessary time required to research GSI which can take days, weeks, months... some of us have kids and demanding jobs and have to cook, clean, repair, work, doctors, school, etc etc.. while others such as myself have opted to go the route of a professional career with no kids and can spend the time researching... Just a suggestion...
Again thank you to all the super smart type fellas and ladies aka DEVs that continue to fight the good fight and make this entire thing possible for the rest of us that are less capable in this area of expertise . You guys rock! Like kick serious @$$ kinda rock!
Click to expand...
Click to collapse
I can sort of give a very brief explanation of sort of how I see it.
And I say sort of because I really don't consider myself an expert, just read a few things here and there
I'm going to go over what "Project Treble" really is, I don't know if you've heard this term thrown around when talking about GSI.
Google made "Project Treble" much more simple with the intention that OEMs would hurry up and release updates faster lol
What happens now is that there is a new partition of where the Android OS takes its resources, and that's the "/vendor" partition. Everything from the drivers to the bluetooth, wifi, sensors, camera, etc.... is found here
Every device that are "Treble" enabled means that they have this "/vendor" partition
So why the S9? Why not the S8, S7, etc...?
Google made it mandatory for all the devices that released with Android Oreo to be "Treble Enabled" out of the box and made it up to the manufacturer to make old devices Treble compatible
But let's not kid ourselves, we all knew that Samsung wouldn't go back on the S8, S7, Note 8, etc... and treblelize them, that's not their style. Though most OEM's didn't do that anyway, there are a very few that actually did.
From the S9 and onwards, all these devices have Project Treble.
So, now we get to what the GSI actually are.
Think of it as ROMs, pretty straight forward.
Now the AndroidOS takes all its hardware resources from "/vendor", these GSI can work on almost all devices out there. Sure there may still exists some compatibility issues here and there but it's much easier to fix them.
So in theory, even if Samsung stops development on the S9 with Android 11, which of course we're all expecting, we can still flash Android 11 GSI when they start coming out because the S9 is Treble enabled
I hope this sort of gave you an idea of what the whole GSI and Project Treble situation is.

PHH Android 9 GSI - Calls no Volume Fix
Just to add onto that, I would like to say that If you are to flash PHH Android 9 GSI and HavocOS 2.9. It doesn't have the calling feature working from the get go. You would be able to make a call to a person, but you won't be able to hear them or they won't be able to hear you. This is an ongoing problem with that GSI. A possible work around for that would be found on
https://forum.xda-developers.com/as...-to/guide-call-fix-patch-gsi-testing-t3791660
Although, I haven't tried it. I am in the process to try and fix this. Will update once done. I cannot thank enough the author and everyone else involved in getting this root to work and along with that being able to flash custom Roms. This is amazing.

What about AOSP 9.0 and 10.0? Do those work?

Mogster2K said:
What about AOSP 9.0 and 10.0? Do those work?
Click to expand...
Click to collapse
I personally haven't tested any more, been busy. You are free to test them yourself and post links to which work. The one consistent bug we did find on Android 10 GSI is broken WiFi.

This works on the 965U, the locked ATT version? This does work on the 965U, I answered my own question.
EDIT: this does not trip knox, sorry for the question. I am RTFM now

Which vendor.img should we use if flashing PHH's GSI 9 or 10?

Mogster2K said:
Which vendor.img should we use if flashing PHH's GSI 9 or 10?
Click to expand...
Click to collapse
The latest Oreo one included in the Syndicate root method

I've run into a problem. I thought PHH's GSI did not have root installed but apparently it does. Unfortunately I flashed ODM_ROOT.zip instead of ODM+NOROOT.zip, and it seems to have broken FlashFire. It's stuck on "Acquiring root access" even tho it already has root. Is there a way to fix this without losing root, or is there another app I can use besides FlashFire? Thanks

Mogster2K said:
I've run into a problem. I thought PHH's GSI did not have root installed but apparently it does. Unfortunately I flashed ODM_ROOT.zip instead of ODM+NOROOT.zip, and it seems to have broken FlashFire. It's stuck on "Acquiring root access" even tho it already has root. Is there a way to fix this without losing root, or is there another app I can use besides FlashFire? Thanks
Click to expand...
Click to collapse
Huh... so now we know that a rooted GSI + the ODM_ROOT zip DOES cause a problem.
Yeah it sucks that on some GSI, the devs don't disclose it's got SU binaries already
What I would do is to look inside one (or both) of your SU apps and see if Flashfire has requested for SU access and it's got it negated for some reason.
If not, then I would just start over with the whole rooting process

Mogster2K said:
I've run into a problem. I thought PHH's GSI did not have root installed but apparently it does. Unfortunately I flashed ODM_ROOT.zip instead of ODM+NOROOT.zip, and it seems to have broken FlashFire. It's stuck on "Acquiring root access" even tho it already has root. Is there a way to fix this without losing root, or is there another app I can use besides FlashFire? Thanks
Click to expand...
Click to collapse
Also clear the data for flashfire and force close it. I. The past we had to just grant all su permissions to get it to work flashfire has been real buggy on s8 and up sometimes
Safe strap possibly.

ShaDisNX255 said:
Huh... so now we know that a rooted GSI + the ODM_ROOT zip DOES cause a problem.
Yeah it sucks that on some GSI, the devs don't disclose it's got SU binaries already
What I would do is to look inside one (or both) of your SU apps and see if Flashfire has requested for SU access and it's got it negated for some reason.
If not, then I would just start over with the whole rooting process
Click to expand...
Click to collapse
Yeah, that's what I ended up doing. I managed to get the rooted Oreo image installed. Another note: PHH 10 v213 does not work with Spectrum Wireless (code CHA). I had no wifi and no mobile data and was stuck on the Google setup for a long time. Anyone here have Spectrum working on a GSI?

Just confirmed that Spectrum Wireless data doesn't work on PHH 9.0 v123 either.

[Sofia(p)(r)][Recovery][WIP] TWRP 3.4.0.0

vache said:
Here you go : https://drive.google.com/file/d/1x4t6ca8TLf1bNHrQa-jjCN_AhdV2W78u/view?usp=drivesdk
Boots on sofia (g power), sofiar (g8 power), sofiap (g stylus), sofiap_ao (g pro)
Click to expand...
Click to collapse
I started the thread, but did not make this build. Everything should work. Thank @vache.

Quick update I did get TWRP to build successfully. Unfortunately it just sits on the boot logo but doesn't go back to fastboot, but that was just a quick see what happens build. I haven't added everything I need to yet. Will work on it more tonight, but progress is good so far.

@CodyF86 thanks for taking the lead on porting TWRP to the G Power. The G Power appears to be the best "bang for the buck" phone on the market currently, and has been widely covered by the media so far. I expect that the Moto G Power sub will grow steadily in the upcoming months, leading to custom rom development for the G Power. Having TWRP ported would be a start to paving way for custom rom development.

So another quick little update. I have the device repo basically where it should be...give or take heh. It's changed a bit from what is on my github, but it's pretty close. The only issue i'm having is that compiling it with the minimal manifest isn't going to work. It doesn't compile right. It compiles, but it doesn't copy things over correctly and/or at all depending on what it is.
My repo is pretty close to what the moto one power and the g8 power have, at least for their android 9 device tree, and I can get TWRP to boot, if I use the moto one power image and just dump the moto g power kernel into it.
So short version is i'm downloading the full manifest, basically all of Omni, which should hopefully sort it out. It's downloading right now.
EDIT:
Actually it helps to read the documentation I guess lol.
https://source.android.com/devices/bootloader/system-as-root#using-vendor-overlay
Will keep playing with it.

This is exciting! Thanks for your hard work.

CodyF86 said:
Will keep playing with it.
Click to expand...
Click to collapse
Thank you for taking this on! Having TWRP recovery for "sofia" will really make this phone great!

GoodOlDan said:
Thank you for taking this on! Having TWRP recovery for "sofia" will really make this phone great!
Click to expand...
Click to collapse
I "should" have it working in a day or two...(or even tonight...) The Code Aurora repos have been helping greatly.
https://source.codeaurora.org/quic/la/platform/vendor/qcom/trinket/tree/BoardConfig.mk?h=LA.UM.8.11.r1-03800-NICOBAR.0

Quick question, is the Moto g power the same as Moto g8 power? If they get custom Rom they'll unified? From what I know, the g power is the us variant release of the g8 power, right?. Thx in advance

Been making changes and even trying to repack some files from our devices into chef from when I got chef to boot with a repacked kernel but the touch screen wouldnt work and it couldnt see any partitions really.
Part of the problem seems to be the build system. It's not populating the output image fully. It's not even putting the TWRP directory in there lol.....
Going to keep trying. Going to try to find a native android 10 device that has twrp working unless there isnt one yet. Also our device is a little different it actually puts certain things in /system where in android 9 they went into /vendor. Spent about 3-4 hours on it today, but not going to give up.
I think there is an issue with the OMNI build system though also.

CodyF86 said:
Been making changes and even trying to repack some files from our devices into chef from when I got chef to boot with a repacked kernel but the touch screen wouldnt work and it couldnt see any partitions really.
Part of the problem seems to be the build system. It's not populating the output image fully. It's not even putting the TWRP directory in there lol.....
Click to expand...
Click to collapse
HI, I'd be willing to help with this, I'm a developer, I worked with @tecknight on TWRP for a phone called the Wiko Ride. We never quite got a working TWRP but learned quite a bit about AVB and such. I've already got my Sofia (US unlocked retail, running on Boost Mobile) rooted and could use a new challenge.
I too have been quite baffled by the Android build process at times - the docs that exist seem to assume a LOT of prior knowledge - the barrier to entry seems higher than ordinary Linux kernel hacking by quite a bit.

rlrevell said:
HI, I'd be willing to help with this, I'm a developer, I worked with @tecknight on TWRP for a phone called the Wiko Ride. We never quite got a working TWRP but learned quite a bit about AVB and such. I've already got my Sofia (US unlocked retail, running on Boost Mobile) rooted and could use a new challenge.
I too have been quite baffled by the Android build process at times - the docs that exist seem to assume a LOT of prior knowledge - the barrier to entry seems higher than ordinary Linux kernel hacking by quite a bit.
Click to expand...
Click to collapse
Look at my github you can see the cluster ef of changes I made to at least get to a console. Ironically if you repack the kernel into the chef version of TWRP it boots to the GUI but the touch screen doesnt work.. Our device is weird although it is android 10 native but it has a /system folder. Also on android 10 you can just add things to the vendor partition without using the product partition as an overlay.
Unpack the stock recovery. I went back to the basics and am basically going to mirror the stock recovery then inject the twrp binary, but its weird, the omni build system isnt doing some things correctly it seems also.
This will be your greatest resource. Code Aurora has the answers.
https://source.codeaurora.org/quic/la
https://source.codeaurora.org/quic/la/platform/vendor/qcom/trinket/tree/?h=LA.UM.8.11.r1-03800-NICOBAR.0
https://github.com/codyf86/device_motorola_sofia
LA.UM.8.11.r1-03800-NICOBAR.0 is our current CAF version tree.
Actually I just started the repo over the commits were nasty. Everything important and pertinent is in the initial commit now.
Ive been compiling and hacking kernels for 10 years, building Android for probably the same and this switch to the new partition layout + TWRP has so far been the... I don't want to say hardest but longest thing i've tried to do without any forward movement.
Like I said I got farther just by repacking the our kernel into the moto chef kernel, but they have a system_root directory and we dont. We just have system.
Theyre lib64 goes in /vendor ours goes in /system.
unpack the stock recovery image to start also TWRP uses init.qcom.recovery.rc to do things on the init and init.rc hand off where as stock recovery version of that file is different.

Actually I know partially why it wont boot. I have the paths in the init.recvoery.qcom.rc messed up, but also [email protected] doesn't exist in our lib64/hw directories, but there is a [email protected] file in the stock recovery so going to try that, plus were building bootctrl.trinket.

Nm i found the -service binaries for the boot gatekeeper keymaster libraries etc. think I made some progress but I have to build it and make sure everything gets in the right spot. will keep on keeping on.

The current code I have on my github will boot the stock recovery lol (the build system is being weird)....the build system isn't putting things in the right spot still. I was able to get TWRP to boot by rearranging some things manually, but it isn't pretty. So there is some progress, but the build system is part of the problem at this point at least for android 10. I'm still working on it.

CodyF86 said:
The current code I have on my github will boot the stock recovery lol (the build system is being weird)....the build system isn't putting things in the right spot still. I was able to get TWRP to boot by rearranging some things manually, but it isn't pretty. So there is some progress, but the build system is part of the problem at this point at least for android 10. I'm still working on it.
Click to expand...
Click to collapse
Hey, do you have a telegram account for easier conversing? I feel we might be able to help each other here?(I'm working on sofiar)

Dark98 said:
Hey, do you have a telegram account for easier conversing? I feel we might be able to help each other here(I'm working on sofiar)
Click to expand...
Click to collapse
I can make one and ill dm you.
Here are my questions so far / some observations.
The init.rc that the twrp build system puts in the build is incorrect. It needs to be manually added...I think there is a flag for that actually, but I had to change it once it was built. (I was able to make it boot to the first screen by dropping in things in /sbin from https://github.com/TeamWin/android_device_motorola_chef)
The build system doesn't add the twrpres folder to the built image lol; or the twrp binaries to /sbin.
I literally had to copy them over from chef.
Also for example servicemanager and hardwaremanager aren't in the chef repo but they are in /sbin when you unpack the recovery image (chef), is the build system building them or putting them in from somewhere or are the repos not actually the final product and they had to hack the image a bit too.
I had ours added in then took it out when I couldnt find them in anyones device tree but they are there when you unpack all of the recovery images lol.
edit: It's actually putting most of the stuff (adbd) and symlinks in /system/bin including the recovery bin which is twrp, so let me readjust the init scripts.
our device is different it still has /system and not system_root.
another edit: Looking at android_bootable_recovery/crypto/ex4crypt I think im missing some libraries still.

Okay, if/when you do message me on there please, I hardly check XDA other than when I'm updating a Rom I maintain? @Dark998 is my username

@CodyF86
Interested and surprised to see that twrp for native android 10 is in the works.
After reading Dees Troy's article in late 2019 regarding twrp on android 10, I had resigned myself to the notion that twrp is more or less dead for android 10+...
https://twrp.me/site/update/2019/10/23/twrp-and-android-10.html
Hope you're able to get it working!

Q9Nap said:
@CodyF86
Interested and surprised to see that twrp for native android 10 is in the works.
After reading Dees Troy's article in late 2019 regarding twrp on android 10, I had resigned myself to the notion that twrp is more or less dead for android 10+...
https://twrp.me/site/update/2019/10/23/twrp-and-android-10.html
Hope you're able to get it working!
Click to expand...
Click to collapse
I was absolutely able to get it to boot with adb up but with no touch screen and it couldn't see any paritions, but ive adjusted the fstab file.
Also slightly embarassed to say I repo synced and forgot to drop twrp 10 back in, but i need a libinit with twrp 10 and it actually gave me a couple solutions to that accidentally doing that, accidentally building aosp recovery once time lol xD

CodyF86 said:
I was absolutely able to get it to boot with adb up but with no touch screen and it couldn't see any paritions, but ive adjusted the fstab file.
Also slightly embarassed to say I repo synced and forgot to drop twrp 10 back in, but i need a libinit with twrp 10 and it actually gave me a couple solutions to that accidentally doing that, accidentally building aosp recovery once time lol xD
Click to expand...
Click to collapse
I was thinking that if twrp isn't possible, how difficult would it be to modify stock recovery to remove signature verification?
With stock recovery signature verification disabled, at least side loading would be possible. Thoughts?
Also, I'm willing to help test if needed

Need help with device tree SM-T380

Ok, got a T380. Device specs show it should be much more snappy and responsive than it is. I want to build an ASOP or lineage build for it. There are no custom ROMs right now for my device. Can any dev point me in the direction of a tutorial for building the device tree and obtaining the proprietary blobs? I have been googling for weeks and most of them tell me to get the blobs from a similar device running LOS. I have some coding, flashing and linux expericence, so I am not going in as a complete noob. Any advice or help would be greatly appreciated. TIA

I started compiling roms in August so I have been through this journey in which you are about to start. I'm not a developer, but this is what I learned so far.
If you have a supported lineageos device, I suggest you build that first following the guides they have written. This will ensure you have the proper toolchain, tools, OS, memory, hard disk space, etc setup properly. Here is an example.
https://wiki.lineageos.org/devices/gtelwifiue/build
For the device tree, I did a search using "github sm-t380" and it came up with
https://github.com/tangalbert919/android_device_samsung_gta2swifi
Once I knew the code name, gta2swifi, then I searched "github gta2swifi" which lead to
https://github.com/lilindian16/android_device_samsung_gta2swifi
which looks like a good start.
In order to build the rom, you need 5 things.
1) device tree
2) kernel source
3) vendor blobs
4) roomservice.xml
5) twrp
For kernel source, the T380 has open source code at
https://opensource.samsung.com/main
Type T380 in search box and download the Pie kernel source code.
For vendor blobs, if the
https://github.com/lilindian16/android_device_samsung_gta2swifi/blob/master/proprietary-files.txt
is correct, there's over 2300 files that you need to copy over.
For roomservice.xml, take an existing one that is close to the T380 and make modifications to it. I built the T350 and you can look at the roomservice.xml file at
https://forum.xda-developers.com/ga...ficial-lineageos-17-1-galaxy-tab-8-0-t4162573
For twrp, use an existing T380 twrp.
Video tutorials that I found useful in building roms.
https://www.youtube.com/c/AlaskaLinuxUserAKLU/videos

Thanks so much for the help. I am pretty much in the same spot. I have rooted and flashed just about every device I have ever owned and feel pretty confident I can build a ROM for this device. I already have rooted and TWRPed my T380 it was the vendor files and proprietary blobs that were totally dumbfounding me. I will check your links and work through it. Again, thanks so much for the links.

Okiera29 said:
it was the vendor files and proprietary blobs that were totally dumbfounding me.
Click to expand...
Click to collapse
If you haven't noticed, the vendor blobs are at
https://github.com/lilindian16/android_vendor_samsung_gta2swifi
One other tip. For your first build, build an eng build so you have adb logcat enabled right away. It took me days to figure that out when the boot animation was stuck or the tablet was boot looping. The magic command is
TARGET_BUILD_TYPE=debug TARGET_BUILD_VARIANT=eng make -j2 bacon
-j2 because my machine is only dual core and I only have 12GB DRAM to build.
It's the only way to see debug and information messages while the tablet is booting.

Thanks man! Still trying to get it set up right. I tried to build a debloated, deknoxed stock rom with Android Kitchen and failed. Luckily, had a TWRP back up so the soft brick wasn't an issue. I am determined to figure this out and get a thin custom ROM built for this sucker. I need to figure out overclocking too. You have been a tremendous help!!!

@Okiera29 Were you able to get a working LineageOS rom for your T380. If you don't mind telling me what you have tried and if you had success that would help me out a lot. I'm a newbie trying to find my way around custom roms

I forgot that I participated in this thread. I don't have the SM-T380, but one of the links I referenced earlier shows activity in the last month for the SM-T380 and as recent as < 48 hours.
Looking through the commit history, @andr01dfr3ak might actually have a running 18.1 because enforcing selinux is usually done last after the build is up and running.
Albert, aka andr01dfr3ak also worked on earlier versions of the SM-T350 with 15.1. Since then, I have helped build SM-T350 16.0 with some people and then built 17.1 and 18.1 basically on my own.

I do not have the SM-T380 either, so I am not sure if what I have right now even works. I just know that I can build LineageOS for this device.

@andr01dfr3ak built this rom for me I posses a SM-T380 but I don't have it rn I got stuff removed... for awhile.... If @retiredtab has the device may I suggest having @andr01dfr3ak give @retiredtab the rom to run?
{Mod edit: Link removed} my Discord Server.

i'm trying to download the rom from @andr01dfr3ak but there aren't any available mirrors on androidhost

Want to chime in here -- I too have a Samsung SM-T380, rooted and have TWRP 3.2.3-1 flashed to recovery. I downloaded an image lineage-18.1-20220114-UNOFFICIAL-gta2swifi.zip from somewhere, which is what I think @andr01dfr3ak has been working on.
I am able to successfully install the image, but when booting, the following message is displayed at initial splash screen: "KERNEL is not seandroid enforcing"
And then the display goes dark.
I'm more than happy to provide logs and/or test images if that would be helpful? Please let me know if there's anything I can do to move this along so we have a stable Lineage 18.1 image for the SM-T380!

I've (somehow) got this tree to boot. Whatever the manifest in the tree was doing, it wasn't working, but reverting to the stock one (and downgrading everything) seemed to do it.
I can't get the camera HAL to detect any cameras, though. I think Bluetooth also has issues, but at least WiFi/sound/earbuds are working so at the very least you can use it as a media consuming tablet. And I also have no idea if it works outside of my own device either.
Am a little uncomfortable uploading something that barely works, though, but if anyone capable of building it wants to find out, I have a tree here:
https://github.com/lifehackerhansol-android/android_device_samsung_gta2swifi
https://github.com/lifehackerhansol-android/android_vendor_samsung_gta2swifi

@lifehackerhansol Mind DM'ing me a link to your build? I'd like to work on this a bit and reviewing your progress would be helpful!

christophershaw said:
@lifehackerhansol Mind DM'ing me a link to your build? I'd like to work on this a bit and reviewing your progress would be helpful!
Click to expand...
Click to collapse
So I no longer have this device, it has been given to a family member and reverted to stock. So I can't really make a build and confirm that it's working. The device tree I left above is exactly as I left it back when it did work, so you can go off that.
Sorry, I lost the existing build since. Had to reinstall Linux on my machine and all.

I now have another SM-T380. (lol)
The camera was a kernel issue. Turns out we were using j4primelte's kernel, and it worked all the way until it tried to initialize cameras, because our device's cameras aren't supported in that kernel. It's a miracle anything else worked... Well that was the first problem. The second one was that the blobs were old and Samsung botched their upgrade to 9.0 so I had to deal with several workarounds for that. Anyway camera fixed.
Currently in the middle of mucking with SELinux. When that looks clean I'll push a build(?)

Unofficial Unofficial TWRP and Gsi Android 11 or 12(kinda)

Hi guys. First post here and I'm not around my files so it will be a straight forward guide with no downloads right now, you're smart, you know where to source them...
Ok first and foremost, Unlock your bootloader, Motorola makes it easy and there are good guides on this site to do that.
Once your bootloader is unlocked your going to look for an Unofficial TWRP package for the Lenovo K12 Pro... "What?", You say... Yep K12 Pro. Download it and jump over to your boot loader and flash it or just boot to it through fastboot and now you have a way to install root permanently, or not if you would rather not, but you have that option now.
Next find the lastest Magisk apk and get that joker installed using TWRP. Now reboot into system and everything should load up as normal BUT now you have root with TWRP recovery. I have did this at least 100 times since figuring it out and sometimes I do this with a fresh factory flash and sometimes I do this as is without even wiping user data before or after. I'm no expert and I don't care to lose my files so on the rare occasion that I do have a boot loop or soft brick, I get myself into recovery and flash ANY of the cebu firmwares and do it all over again...
Ok, so now we know how to get root and custom recovery... Next find an AB version of Gsi 11 or "borrow" the latest system.img from an Android 12 update or firmware image and open up fastboot again and flash only the system.image to the system partition. Wipe or don't wipe, up to how lucky you're feeling, and then reboot to system... 11 will take 2-3 minutes to boot the first time and I had nearly all functionality when it did. 12, well, that's a little different, it took 3-4 minutes to boot to the setup screen and then lagged like crazy BUT it eventually started downloading a few files it was missing and got better. I couldn't get my calls or messaging to work right but I could hear my phone ring but it never called the phone app to open and let me answer... Weird stuff BUT FYI 12 is a pretty nice to look at OS and maybe one of you guys can take this to the next level and get some true usefulness out of it. I know it's not very technical but when one of you true geniuses try it and get it worked out please feel free to post a true guide with proper instruction and proper terms.
That's all I got guys. Thanks for reading this and ALSO if anybody has a complete list of fastboot and adb commands for the g9 Power or the K12 Pro please share them with me. I've gotten better at getting around but I'm not near as good as if like to be.

Obligatory safety PSA:
The Lenovo K12 Pro is just the Moto G9 Power sold under a different name, however, there could be minor differences that could cause problems.
Also, while searching for this unofficial TWRP build, I only found it on websites like unofficialtwrp.com, and the like. I couldn't find one on XDA. I was unable to find the device tree, or the kernel sources used by this website anywhere on the internet, and as such, the TWRP images provided on such websites are literal blackboxes.
TWRP images created and shared on XDA can be trusted, the source code used to create the image is displayed on the posts of the images, and XDA itself is a trusted site.
Here is what the official TWRP team have to say on the matter:
Unofficial TWRP Downloads
Like the TWRP team say, it is up to you to flash these images or not, but be careful.

mistersmee said:
Obligatory safety PSA:
The Lenovo K12 Pro is just the Moto G9 Power sold under a different name, however, there could be minor differences that could cause problems.
Also, while searching for this unofficial TWRP build, I only found it on websites like unofficialtwrp.com, and the like. I couldn't find one on XDA. I was unable to find the device tree, or the kernel sources used by this website anywhere on the internet, and as such, the TWRP images provided on such websites are literal blackboxes.
TWRP images created and shared on XDA can be trusted, the source code used to create the image is displayed on the posts of the images, and XDA itself is a trusted site.
Here is what the official TWRP team have to say on the matter:
Unofficial TWRP Downloads
Like the TWRP team say, it is up to you to flash these images or not, but be careful.
Click to expand...
Click to collapse
Agreed, I posted as a proof of concept so people with more know how could improve upon. Use this at your own discretion and have fun in doing so.

Is there a way you could post a detailed, step by step instructions of this, please?
I've found the unofficial twrp, but haven't rooted a phone in over 2 years, so I'm a bit rusty, plus things have changed a lot these last couple years.
I'd really appreciate if you could take your time for that.
Thanks in advance.

I don't mind helping you out but I can't post publicly because the rules of the forum and the fact that it's unofficial. I'll get a guide wrote up and PM you. I've had no issues with my device at all but remember it is use at your own discretion.

Dauksza72 said:
I don't mind helping you out but I can't post publicly because the rules of the forum and the fact that it's unofficial. I'll get a guide wrote up and PM you. I've had no issues with my device at all but remember it is use at your own discretion.
Click to expand...
Click to collapse
That would be awesome mate!
I really appreciate that!
Thanks in advance.

Dauksza72 said:
I don't mind helping you out but I can't post publicly because the rules of the forum and the fact that it's unofficial. I'll get a guide wrote up and PM you. I've had no issues with my device at all but remember it is use at your own discretion.
Click to expand...
Click to collapse
I was able to boot into TWRP but when I flash Twrp.img to recovery it won't stick, I always had to do fastboot into recovery if I try to boot into recovery it just reboots back into system, also can't remove any junkware from system, it always gives me error when I tried to remove it using root browser, im still on stock

zfk110 said:
I was able to boot into TWRP but when I flash Twrp.img to recovery it won't stick, I always had to do fastboot into recovery if I try to boot into recovery it just reboots back into system, also can't remove any junkware from system, it always gives me error when I tried to remove it using root browser, im still on stock
Click to expand...
Click to collapse
Check out https://forum.xda-developers.com/t/recovery-unofficial-twrp-3-5-2-cebu.4279917/
for TWRP.
As for removing junkware, as you may or may not know, dynamic partitions is a thing since Android 10. In it, the /system, /product and /vendor partitions have been subsumed under a /super partition. And Google has conveniently used a type of ext4 filesystem for that /super partition, that is read-only.
TL;DR: You cannot modify Android using any sort of "root browser" or inside TWRP, for that matter, anymore.
Off the top of my head, the only way you can remove "junkware" is through some Magisk modules, and even they might not even work.

There are three ways to debloat AFAIK:
Magisk - this is my preferred method. You either replace apks you want removed or empty the /product/etc/nondisable folder so they can be disabled. Takes minimal effort to figure out how to make modules and no scripting knowledge required.
Cross-flashing - you can flash retail software, often including modem firmware, to most Moto phones. The result is a clean system with no carrier junkware.
System R/W Scripts - this is the most nonsensical of the options(IMO), but this option exists if you look around and want to experiment. The big drawback here is that you have to redo everything after every update.

Dauksza72 said:
I don't mind helping you out but I can't post publicly because the rules of the forum and the fact that it's unofficial. I'll get a guide wrote up and PM you. I've had no issues with my device at all but remember it is use at your own discretion.
Click to expand...
Click to collapse
Hello. I know you're new and welcome. I just want you to know, being an unofficial twrp isn't necessarily bad by itself. It's that the sources can't be verified. Lots of devces don't have official TWRPs, yet still have a rockin development section with TWRP instructions, as long as it's shared on a trusted site (I only trust 1 other) and lists it's sources and, even then, it should have the warning. Lots of scam sites target root noobs, as you've probably noticed. I don't think sharing instructions would have been against the rules, but should include a warning to let people know it's a questionable twrp build and it poses a risk, but all of our phones are at risk anyway. We don't have to worry about it anymore though since we have an official and still we are at risk, just far less risk. It comes with the territory. On the other hand, I've been I've been doing this for a very long time with countless phones and I've never noticed any malicious activity on any on any of them.

[[GUIDE]] Flashing Custom GSI ROM to LG G8 (LG820UMx)

This might be completely unnecessary (mods feel free to remove if it is), but I see a LOT of misinformation regarding GSI ROMs and the G8. So. Here's a guide/FAQ for those wondering if/what is possible:
***I'M NOT RESPONSIBLE IF YOU BRICK YOUR PHONE, LOSE YOUR DATA, OR OTHERWISE DAMAGE YOUR DEVICE. IF YOU CHOOSE TO FOLLOW THIS GUIDE, THE FATE OF YOUR DEVICE IS IN YOUR HANDS, NOT MINE, NOT YOUR MOTHER'S, NOT ANYONE OTHER THAN YOUR OWN***
Prerequisites (yes, these are all NECESSARY. If you don't know how to unlock your bootloader or use fastboot, there are other guides here. Go find one.)
Unlocked bootloader (and the V50 engineering abl files as well as stock, plenty of guides here with download links)
QFIL/QPST
Basic Fastboot, ADB knowledge
BACKUP. I mean ALL YOUR DATA kinda backup. This WILL wipe your phone, do NOT come crying to me if you lose the last picture of your favorite sock. Not my fault.
GSI for Treble device (ab)
GApps (optional, but recommended)
Instructions to Flash via Fastboot
WIPE YOUR PHONE
Yeah, completely factory reset that sucker. Doesn't matter if it's through recovery, settings, or adb, just bite the bullet and restore factory settings. You can technicially flash without doing this first, but you'll still have to wipe it before any flashed ROM will run. Sorry.
Boot to EDL (NOT download, your screen should be black, dev manager should show QD Loader 9008 COMx)
Use QFIL to flash engineering abl file to both a and b slots - yes, all this work just for fastboot.
Reboot to fastboot!
I just unplug my phone, use power + vol- to shut phone off and then reconnect while holding vol-, but you do you.
In case you don't remember, your touch screen WILL NOT WORK during this time, even if you fully boot to system! Completely fine and normal, means you're on the right track!
Fastboot Devices should yield "LG850UM", also good!
Open cmd prompt from platform_tools, copy path to desired GSI while you're in there
Run these commands line-by-line:
fastboot format system
fastboot flash system *Path_To_GSI.img*
This is where I usually repeat the 2 commands and attempt reboot while I still have fastboot, whether or not it changes anything I have no idea, but it's never given me problems so why fix it if it ain't broke?
fastboot flash abl_a abl_STOCK.bin
fastboot flash abl_b abl_STOCK.bin
fastboot reboot
Ta-Da! Your shiny new ROM should be up and running. Use TWRP or any kernel manager (I like SmartPak) to flash TWRP, GApps, blah blah blah.
FAQ/Troubleshooting
Touchscreen still not working? Go back to EDL and load the stock abl bin files through QFIL, then reboot as normal.
You will likely be asked to input a password upon successful reboot, just enter your PIN/password, whatever you used to unlock your phone pre-flash
The cool things like QuadDAC and LG-specific tweaks will probably not work. Weigh your options before flashing.
Magisk comes pre-installed with most GSI's, just follow the prompts and you'll be just fine.
Don't want GApps? Just sideload desired apk's via ADB, or use the browser to search for them.
Can't I just use TWRP and make this whole process a lot simpler? Yep. But some of us don't have working TWRP or prefer using fastboot commands. This is for those people, don't hate.
Which ROMs work?? Not sure, haven't tried them all. Currently running HavocOS found in Treble GSI forum on here.
Help! I broke my phone! No, you probably didn't. It's advisable that you know how to emergency restore via LGUP prior to starting this process though. Please be specific as to what part of this "broke" your phone and why exactly your phone is "broken" if you're going to ask for help- "bricked device" has never helped anyone.
Rebooting is your best friend in this process, especially during the first boot. If anything starts to hang up or act funny, just give the phone a minute to catch its breath and, worst case, turn it off and back on again
As previously stated, this is probably pointless, but given all I see on the G8 forum is "no custom ROM" or "why bother trying to *insert idea here*", I figured it might help some folks out. I'm sure I left a few things out, feel free to correct or provide input as necessary.

Works on LM-G820QM5?, I have bootloader unlocked

Elihu_GmG said:
Works on LM-G820QM5?, I have bootloader unlocked
Click to expand...
Click to collapse
Yep, it's basically the unlocking/root process only you're formatting/flashing the "system" partition instead of "boot_a/b"

Great info, thnx for the write up. But what about the totc.cfg file? My understanding is no G8 is going to boot if there's a mis-match between that file and the hardware indication of what variant the phone is?
Sorry if my understanding is misguided, new to the G8 (and all it's idiosyncrasies).

AsItLies said:
Great info, thnx for the write up. But what about the totc.cfg file? My understanding is no G8 is going to boot if there's a mis-match between that file and the hardware indication of what variant the phone is?
Sorry if my understanding is misguided, new to the G8 (and all it's idiosyncrasies).
Click to expand...
Click to collapse
In this case there is no tot file, no recovery, laf, or the like. GSI's are generic system images that are capable of being flashed to most Treble-Enabled Androids from Oreo on up. You do lose some of the device specific things (hence, generic), but they're a great alternative if you're like us and stuck with next to no custom anything built for your device. There's a whole forum for them on here, I highly suggest checking it out- it's a pretty awesome option to have.

SirOlive said:
In this case there is no tot file, no recovery, laf, or the like. GSI's are generic system images that are capable of being flashed to most Treble-Enabled Androids from Oreo on up. You do lose some of the device specific things (hence, generic), but they're a great alternative if you're like us and stuck with next to no custom anything built for your device. There's a whole forum for them on here, I highly suggest checking it out- it's a pretty awesome option to have.
Click to expand...
Click to collapse
Great, thnx, sorry for being a jerk but, this does work on a G8? Tested and proven? I ask because it's my understanding that without a match between the hardware encoded variant of the device and what's in the totc file, it won't boot.
you say there is no totc? then how does the hardware encoding get verified? See, that's why there are no custom roms. LG did this to keep people from crossflashing and it killed rom development.
Hey, if I'm wrong, feel free to point that out. But as far as I've discovered so far, a GSI doesn't get a free pass to bypass this mess LG has created with this mis-match hw / totc file.
cheers

AsItLies said:
Great, thnx, sorry for being a jerk but, this does work on a G8? Tested and proven? I ask because it's my understanding that without a match between the hardware encoded variant of the device and what's in the totc file, it won't boot.
you say there is no totc? then how does the hardware encoding get verified? See, that's why there are no custom roms. LG did this to keep people from crossflashing and it killed rom development.
Hey, if I'm wrong, feel free to point that out. But as far as I've discovered so far, a GSI doesn't get a free pass to bypass this mess LG has created with this mis-match hw / totc file.
cheers
Click to expand...
Click to collapse
Sorry for being short, but a simple Google search would back up everything I've written. I wouldn't have written this up if it didn't work, or if it was just a theory... I wouldn't have said that my Verizon G8 is running Havoc if it didn't work. I was able to flash with zero problems. With the Treble Project, Google has mandated that Android devices boxed with 11+ (possibly 10?) be capable of not only recognizing, but running GSIs as to assist developers in testing apps and builds in varying versions of Android as quickly, easily, and simply as possible. This means that not only can one download and flash Android releases downloaded directly from Google, but devs can use the source code to create versions of their ROMs that will apply to a wide array of models that would never have seen development otherwise. Because these are "generic" images and are based upon system architecture type alone- not a particular make/model- there are sometimes things overlooked. For instance, in our case, the audio processing and LG's camera software are not present. These are decently made up for by the presence of flashable mods, though, and the phone remains fully functional, Google Play Certified (if desired), and as reliable as the ROM you choose to flash.
Basically, Google>LG. LG wants to use the Android platform, they must abide by Google's rules. They need not go into great detail, nor allow their devices to be changed to something fundamentally non-LG, nor divulge any potentially propitiatory subject matter (once again, "generic"), but they must allow the device to be open to a certain level of customization as designated by Google.
Is it ideal? Not if you're lucky enough to have ROMs tailored for your specific phone. But for those left behind- like the G8- it's a fantastic workaround that does, in fact, work. As I'm sure you're still skeptical, I will add screenshots tomorrow to prove the validity of this seemingly ludicrous claim. In the meantime, please do some research on the topic- or better yet, give it a shot- there's gotta be a guide around here somewhere.

It works

Of [email protected]*$king course it works. I’ve flashed it to my sprint v50 (v450pm). Had the same QuadDac problem though. Couldn’t get a sound out of it. I mean no sound of any kind. Also couldn’t get it to activate on Google Fi. Will be watching to see if someone solves the Sound problem. We could just skip on past A11.

hooutoo said:
Of [email protected]*$king course it works. I’ve flashed it to my sprint v50 (v450pm). Had the same QuadDac problem though. Couldn’t get a sound out of it. I mean no sound of any kind. Also couldn’t get it to activate on Google Fi. Will be watching to see if someone solves the Sound problem. We could just skip on past A11.
Click to expand...
Click to collapse
Where did you get V50 engineering abl files as well as stock?, I just want to make sure to get the correct files

Guide LG G8/G8x/v50 Bootloader Unlock and Magisk Root using Firehose
Disclaimer: I am not responsible for any problems from using this guide. Works for G8, G8s, G8x, and v50 Confirmed working on G8 and v50 Requirements: Android 10 QFIL...
forum.xda-developers.com
There's no such thing, afak, of a v50 Eng abl. Read the header on the thread! If you don't have one of those phone models, don't! All of this seems to be predicated on the g8x eng abl which is the DL on that thread. READ that thread closely. I did, BL unlock and then flash A12 GSI.

hooutoo said:
Guide LG G8/G8x/v50 Bootloader Unlock and Magisk Root using Firehose
Disclaimer: I am not responsible for any problems from using this guide. Works for G8, G8s, G8x, and v50 Confirmed working on G8 and v50 Requirements: Android 10 QFIL...
forum.xda-developers.com
There's no such thing, afak, of a v50 Eng abl. Read the header on the thread! If you don't have one of those phone models, don't! All of this seems to be predicated on the g8x eng abl which is the DL on that thread. READ that thread closely. I did, BL unlock and then flash A12 GSI.
Click to expand...
Click to collapse
Ok,ok

Hello, I followed your instructions as written but when I reboot my phone I am stuck at a boot logo cycle, but my comment doesnt have to do with that, I want to ask if maybe you know what could've gone wrong.
I also own a g8 from verizon, I do have bootloader unlock, and tried to install Havoc OS, I wanted to mention this in case it is useful

Dude, I have no knowledge of G8, per se. My main goal was to get away from Sprint software on my v450pm. These phones are a little touchy. I do know that if you have a proven RESTORE method then you can mess around.. If you're Qfil_ing your phone you MUST have a backup of EVERY damn partition. I trashed my ftm partition and it was bad. Use telegram group for very good info. I have yet to be able to logon to Google Fi, an mnvo of Tmob. I've crossflashed to Eu A11, no go. I'm about to try some other roms, but again a backup will be needed.
Remember, you gotta have a way out or you're gonna pay $14 bucks to a Russian.

hooutoo said:
Dude, I have no knowledge of G8, per se. My main goal was to get away from Sprint software on my v450pm. These phones are a little touchy. I do know that if you have a proven RESTORE method then you can mess around.. If you're Qfil_ing your phone you MUST have a backup of EVERY damn partition. I trashed my ftm partition and it was bad. Use telegram group for very good info. I have yet to be able to logon to Google Fi, an mnvo of Tmob. I've crossflashed to Eu A11, no go. I'm about to try some other roms, but again a backup will be needed.
Remember, you gotta have a way out or you're gonna pay $14 bucks to a Russian.
Click to expand...
Click to collapse
Yeah, I know, like I said in my previous comment my phone got stuck in a boot loop, I fix it just by loading system_a partition in qfil, so I am gonna give it another shot and see if it works, already backed up every partition just in case anything goes wrong

If you're goona play around, this is secondary bs. My real phone is a FLIP3 and I'm not allowed to play unlesss to make/awnswer call.

Does somebody tried tp flash GSI with LineAge (A11) or Arrow(A12) vendor to g8?
I`m interesting about dt2w .. I flashed GSI`s to my G820UM on the past (A10 stock vendor) and it have no dt2w.. ((

i ended zeroing my imei from sprint G8 but thats okay i dont care for it much but what i do care is getting some LOS 17.1 on the sprint G8

where do we have any links to these so called GSI images?

blaze2051 said:
where do we have any links to these so called GSI images?
Click to expand...
Click to collapse
Treble-Enabled Device Development A/AB ROMS
Treble-Enabled Device Development A/AB ROMS
forum.xda-developers.com
From what I remember when I tested multiple Android 11 GSIs such as Pixel Experience, I couldn't get vibration to work on my G8.