Took the latest OTA. How can I downgrade and install TWRP and CFW? - T-Mobile LG G4

The title explains it all. I got this phone knowing I could root and install CFW, but wanted to just "use" it for a few days in stock. I don't mind stock, I would jsut prefer a custom firmware. I'm having trouble figuring out what I need to do to downgrade to Lollipop so I can flash TWRP and begin using CFW. A simple set of instructions would be very appreciated. Thanks to anyone who can help!

but2002 said:
The title explains it all. I got this phone knowing I could root and install CFW, but wanted to just "use" it for a few days in stock. I don't mind stock, I would jsut prefer a custom firmware. I'm having trouble figuring out what I need to do to downgrade to Lollipop so I can flash TWRP and begin using CFW. A simple set of instructions would be very appreciated. Thanks to anyone who can help!
Click to expand...
Click to collapse
There appear to be guides here for doing those things with 6.0 installed, such as MicroMod777's guides.

After a few more hours of digging, I figured it out. I may draw up a cleanly laid out guide referencing the posts that helped me for people in the position I was.
Thank you!

No, you don't need to downgrade, just go ahead and install TWRP & CFW.
Careful with downgrading, becuz H811 has Q-Fuse enabled, if you mess up you'll end up with a 9008 hard brick

im having a similar issue im trying to root/unlock 20p and its not finding any device in fastboot it just sits there saying locating any device and never locates anything adb see's the phone just fine anyone know anything about that? thanks for the help in advance

Rooting stock G4H811 already on 20p?
but2002 said:
After a few more hours of digging, I figured it out. I may draw up a cleanly laid out guide referencing the posts that helped me for people in the position I was.
Thank you!
Click to expand...
Click to collapse
Yea, I'm trying to root my new updated G4 that's on 20p. I have one that's soft bricked already that I'm trying to fix and don't wish to brick another.
Can someone point me in the right direction?
Thanks

Im in the same boat. No devices found after fastboot. Any advice?

Related

HTC VIVID Super User Problems....

So I am a new person and therefor can not post this in the development thread under the forum where I feel it would belong with the other root related questions.... So i followed the SUPER GUIDE to root my phone (Thank you so much Slapshot and PirateGhost, I was beginning to regret not getting a skyrocket until I found your thread). My super user is running into an issue I can not seem to fix.....
Maybe this is simple or maybe I really messed something up....
Basically none of my apps have root anymore (they did at one point and to my knowledge I change nothing...)
When I go to the Super User app to update my binaries and hopefully get any issues resolved I am greeted by the following error message in the update log: "Failed to find currently installed SU binary. Update cannot continue"
Is there a resolution for this? I have not found anyone even running into the same issue on the Vivid.....
A little nervous.... I didnt have near this many issues rooting my ATRIX and modding the living daylights out of that.
Have you checked with Root Checker Basic to see if you even have Root? If you didn't follow the Super Guide step by step your phone could have relocked after you turned your phone off/on.
If it still fails to update you could try SuperUser Update Fixer.
Yes I have check with root checker.
This may be a dumb question but how do I uninstall Superuser? When I go to the typical application management it does not give me the option. I have done an install again to overwrite the files and nothing changed there.
I followed the instructions step by step (though obviously I messed up somewhere...)
Sent from my HTC PH39100 using XDA App
Kraizk said:
So I am a new person and therefor can not post this in the development thread under the forum where I feel it would belong with the other root related questions.... So i followed the SUPER GUIDE to root my phone (Thank you so much Slapshot and PirateGhost, I was beginning to regret not getting a skyrocket until I found your thread). My super user is running into an issue I can not seem to fix.....
Maybe this is simple or maybe I really messed something up....
Basically none of my apps have root anymore (they did at one point and to my knowledge I change nothing...)
When I go to the Super User app to update my binaries and hopefully get any issues resolved I am greeted by the following error message in the update log: "Failed to find currently installed SU binary. Update cannot continue"
Is there a resolution for this? I have not found anyone even running into the same issue on the Vivid.....
A little nervous.... I didnt have near this many issues rooting my ATRIX and modding the living daylights out of that.
Click to expand...
Click to collapse
Interesting... maybe your root didn't stick. We had a little trouble with that before but pirateghost fixed the CWM ROOT zip. You have a working CWM Recovery, correct?
In the superguide, I have a second option for root in case the first doesn't work. In your case, go ahead and try the second option. The one involving the supertool. That should get you perm root. If that doesn't even work, then we might have to put you back to stock and go at it again.
EDIT: BEFORE TRYING THE SUPERTOOL, try flashing the new CWM ROOT VER2 zip from CWM recovery and see if root sticks.
Slapshot, thank you for checking the General Thread, I really do appreciate that. I have tried both methods multiple times since the root failure seeing as so many people said they had to run the methods multiple times to make them stick (this admittedly may be part of the issue). The most recent one has been the CWM ROOT VER2. Still no dice. Is there a method to remove and re install super user? Or am I reading into the error too literally and instead I just basically do not have root.
Kraizk said:
Slapshot, thank you for checking the General Thread, I really do appreciate that. I have tried both methods multiple times since the root failure seeing as so many people said they had to run the methods multiple times to make them stick (this admittedly may be part of the issue). The most recent one has been the CWM ROOT VER2. Still no dice. Is there a method to remove and re install super user? Or am I reading into the error too literally and instead I just basically do not have root.
Click to expand...
Click to collapse
No problem. At this point I think you may just not have root... but first, go ahead and go into bootloader (power off, then power on while holding power and vol down). Does your device say unlocked?
*Just a clarification*
You have to unroot your phone to get rid of it Idk why I put uninstall/reinstall earlier...still out there from last night I guess.
slapshot30 said:
No problem. At this point I think you may just not have root... but first, go ahead and go into bootloader (power off, then power on while holding power and vol down). Does your device say unlocked?
Click to expand...
Click to collapse
Yes the device still says unlocked. That was one of the first things I checked... Haha....
As I said ive flashed the rooted CWM and it says it went over successfully.
If i use the Zerg exploit it still seems to go over successfully (I realize this has a tenancy to mess with internal storage and only provide a temp root but i do not even get that temp root).
How would I unroot my device? Do you mean flash to stock and relock my boot loader?
As I said I have flashed several devices in the past (Atrix, eee pad transformer, HTC Inspire, HTC DINC, SAMSUNG GALAXY S T-Mobile) but I am not completely up to date on all of the technical terms...
Kraizk said:
Yes the device still says unlocked. That was one of the first things I checked... Haha....
As I said ive flashed the rooted CWM and it says it went over successfully.
If i use the Zerg exploit it still seems to go over successfully (I realize this has a tenancy to mess with internal storage and only provide a temp root but i do not even get that temp root).
How would I unroot my device? Do you mean flash to stock and relock my boot loader?
As I said I have flashed several devices in the past (Atrix, eee pad transformer, HTC Inspire, HTC DINC, SAMSUNG GALAXY S T-Mobile) but I am not completely up to date on all of the technical terms...
Click to expand...
Click to collapse
Yes, I mean relock the bootloader and back to stock rom, then try again. Do you know how to get back to stock?
slapshot30 said:
Yes, I mean relock the bootloader and back to stock rom, then try again. Do you know how to get back to stock?
Click to expand...
Click to collapse
actually that one I do not know how to do... I realize this is probably somewhat annoying because I am sure you have said how to do it before.... Some help would be greatly appreciated
Kraizk said:
actually that one I do not know how to do... I realize this is probably somewhat annoying because I am sure you have said how to do it before.... Some help would be greatly appreciated
Click to expand...
Click to collapse
I haven't told anyone how to do it surprisingly, and I'm more than happy to help . I was honestly thinking about adding reverting back to stock to the superguide, and I think I just may do that. Here is the link. Pirateghost is the man.
http://forum.xda-developers.com/showpost.php?p=20821226&postcount=4
Thank you for this and all of your help, people like you and ghostpirate are why i still feel like I can turn to the XDA community. I will try this firs thing in the morning and give an update on how things went. I would try it tonight but lets be honest, its the 1st of the year and the last thing I need to be doing is messing with technology.....
Kraizk said:
Thank you for this and all of your help, people like you and ghostpirate are why i still feel like I can turn to the XDA community. I will try this firs thing in the morning and give an update on how things went. I would try it tonight but lets be honest, its the 1st of the year and the last thing I need to be doing is messing with technology.....
Click to expand...
Click to collapse
It's no problem, this isn't a dumb question or easy issue by any means. If the method I directed to you doesn't work, let me know. There is another way to do it without all the code.
slapshot30 said:
I haven't told anyone how to do it surprisingly, and I'm more than happy to help . I was honestly thinking about adding reverting back to stock to the superguide, and I think I just may do that. Here is the link. Pirateghost is the man.
http://forum.xda-developers.com/showpost.php?p=20821226&postcount=4
Click to expand...
Click to collapse
Worked perfectly. I flashed it back to stock using the thread you linked me to. Then I did the CWM Root method and so far so good. I appreciate all of your help
Nice, I'm glad you were able to get everything working.
Sent from my HTC PH39100 using xda premium

[Q] FlashFire: Current Binary

Hi, thank you very much for reading!
I've been playing around with my new Verizon Edge 6. I had no problems obtaining root, though I'm not an Android expert whatsoever. More of a good at following clear instructions kind of guy, I guess.
Anyway, I haven't been able to flash it much else than the stock rom. Whatever else I try flashing does end up booting, but the phone won't recognize my SIM Card at all no matter what I try (I know I could likely try some more stuff, but I have no idea). When I flash the stock one back in, it behaves flawlessly again.
My guess is that this has something to do with my Current Binary Status in FlashFire being "Unknown" when it should read "Official". And my question is if you know how what the easiest way to get it that way and if you could pretty please point me out where I can get the files I'll need.
Thank you VERY much in advance!
Frannyman said:
Hi, thank you very much for reading!
I've been playing around with my new Verizon Edge 6. I had no problems obtaining root, though I'm not an Android expert whatsoever. More of a good at following clear instructions kind of guy, I guess.
Anyway, I haven't been able to flash it much else than the stock rom. Whatever else I try flashing does end up booting, but the phone won't recognize my SIM Card at all no matter what I try (I know I could likely try some more stuff, but I have no idea). When I flash the stock one back in, it behaves flawlessly again.
My guess is that this has something to do with my Current Binary Status in FlashFire being "Unknown" when it should read "Official". And my question is if you know how what the easiest way to get it that way and if you could pretty please point me out where I can get the files I'll need.
Thank you VERY much in advance!
Click to expand...
Click to collapse
Binary status in Flashfire will read unknown for all Verizon S6/edge variants, due to the bootloader being protected.
I am not sure where your problem comes from exactly. Are you on OC3 firmware, and trying to flash an OE2 rom/package? If not, could you be more specific on what your flashing in FF, and what firmware your on?
Sent from my SM-G925V
My apologies por taking so long to reply. I had no trouble installing the Firmware I wanted right after reading your post. It was in fact trying to flash an OC2 on a OC3 Firmware. I was too embarrassed to admit I had in fact no idea what I was talking about. I humbly recognize now my ignorance, stupidity and stubborness. Thank you very much for your prompt help!
Frannyman said:
My apologies por taking so long to reply. I had no trouble installing the Firmware I wanted right after reading your post. It was in fact trying to flash an OC2 on a OC3 Firmware. I was too embarrassed to admit I had in fact no idea what I was talking about. I humbly recognize now my ignorance, stupidity and stubborness. Thank you very much for your prompt help!
Click to expand...
Click to collapse
No problem with trying to help, and thank you for replying. And don't feel bad or worry about it, we all start somewhere! I certainly am no expert, but try and help where I can.
Sent from my SM-G925V
My S4 i9500 International version is shown as UNKNOWN, too in Flashfire. Why?

not really a noob, but still confused anyway... need a little help from my friends...

Project Fi Nexus 6 rooted here on 5.1.1 LVY48E
I keep getting a notice that a system update has been downloaded (29.1) megs..a tad annoying
Would like to run the update, but can't because of TWRP... Also would like to try 6.0 if it is out, just don't want to lose root, and or have to have my phone reset...
I have Wug's nexus root toolkit too
How do I update to the latest L and or/ M???
Looking for some friendly advice....
Thanks!
Forgot to mention that I have tried flashing the update manually to no avail..
Drumrjoe
You can't update your rooted phone with Ota update, only way is to flash the factory image, download latest Nexus 6 factory image from Google and flash it with the tool kit, if you don't know how to flash a factory image, you should see the main thread
And I believe , given the need for a modified boot when rooting Marshmallow, you lose the OTA anyway, no?
aiiee said:
And I believe , given the need for a modified boot when rooting Marshmallow, you lose the OTA anyway, no?
Click to expand...
Click to collapse
Thanks for the help! Been using the toolkit to try and flash stock + unroot...
It doesn't seem to be working for me... First tried to update to last version of lollipop.. runs the batch updater after downloading the factory image and extracting.. batch window closes after awhile I wait after no change to phone or toolkit and nothing has changed on phone... tried this with marshmallow too... same thing....
At a loss..
drumrjoe said:
Thanks for the help! Been using the toolkit to try and flash stock + unroot...
It doesn't seem to be working for me... First tried to update to last version of lollipop.. runs the batch updater after downloading the factory image and extracting.. batch window closes after awhile I wait after no change to phone or toolkit and nothing has changed on phone... tried this with marshmallow too... same thing....
At a loss..
Click to expand...
Click to collapse
Just do it manually using fastboot. Or since you have TWRP, find a pre-rooted rom.zip you can flash from there.
Lately half the threads are about a toolkit not working. There should be a sticky about this: Don't use toolkits on Nexus phones! Those who don't feel secure enough to enter three lines in a command line/terminal really shouldn't use toolkits either. It gives a feeling of false security for a price of being totally at loss if anything goes wrong. And things do go wrong.
istperson said:
Lately half the threads are about a toolkit not working. There should be a sticky about this: Don't use toolkits on Nexus phones! Those who don't feel secure enough to enter three lines in a command line/terminal really shouldn't use toolkits either. It gives a feeling of false security for a price of being totally at loss if anything goes wrong. And things do go wrong.
Click to expand...
Click to collapse
We try to advise people not to use rootkits or kits of any kind. It does nothing but hinder their efforts if something goes wrong. In the end it is people being lazy and then bricks happen and they have no idea what to do.
zelendel said:
We try to advise people not to use rootkits or kits of any kind. It does nothing but hinder their efforts if something goes wrong. In the end it is people being lazy and then bricks happen and they have no idea what to do.
Click to expand...
Click to collapse
I think many of us here agree with that. To avoid bashing, we have to say "use them if you like, but learn to use fastboot manually first". But all the work we collectively put in to that as a majority is easily undone when just one person replies "use a toolkit". It almost always ends up in a debate that is so long that when it reaches it's conclusion, the OP ended up using a toolkit anyway.,
danarama said:
I think many of us here agree with that. To avoid bashing, we have to say "use them if you like, but learn to use fastboot manually first". But all the work we collectively put in to that as a majority is easily undone when just one person replies "use a toolkit". It almost always ends up in a debate that is so long that when it reaches it's conclusion, the OP ended up using a toolkit anyway.,
Click to expand...
Click to collapse
I know. All we can do is advise and the lazy will still be lazy and then end up with issues. This is why you will see people post about issues and then the min they mention they have used a root kit all replies stop. There are many of us that refuse to help people that have used a root kit. It shows they should not be messing around with their devices if they dont have the time to learn to do things properly.
Duly noted -
But seriously, thanks for the info.. will be figuring this out!
Best all
DJ
Update-
Sincere thanks to all that replied.. Did not know that the toolkit's were a nono-
I did use the command line to manually update and all is well. I am on LVY48I now and rooted.. Next is to reinstall the latest xposed for 5.1.1.
Also, tried finding a stock pre-rooted marshmallow, but didn't really have any luck with that... any pointers or links?
TIA
drumrjoe said:
Update-
Sincere thanks to all that replied.. Did not know that the toolkit's were a nono-
I did use the command line to manually update and all is well. I am on LVY48I now and rooted.. Next is to reinstall the latest xposed for 5.1.1.
Also, tried finding a stock pre-rooted marshmallow, but didn't really have any luck with that... any pointers or links?
TIA
Click to expand...
Click to collapse
Not 100% sure of this but I believe that Marshmallow will not achieve root without some modification. At least I couldn't

Flashing back to stock

I looked for other threads on the issue and didn't really find any that helped.
I am currently on cm12.1 with twrp 2.8.7.1
I am downloading the latest stock build from the google developers site:
https://developers.google.com/android/nexus/images#shamu
Basically, I need to know how to go about it. Ideally I could flash it via twrp, but I've never had a phone where factory images were flashable like that.
Essentially what I want to end up with is stock, with twrp, xposed and gravitybox.
Can someone point me in the right direction?
http://forum.xda-developers.com/nexus-6/general/guide-flash-factory-images-nexus-6shamu-t2954008
Found this finally. I think it answers my question.
Forboding Angel said:
http://forum.xda-developers.com/nexus-6/general/guide-flash-factory-images-nexus-6shamu-t2954008
Found this finally. I think it answers my question.
Click to expand...
Click to collapse
Use method 2 (img`s), flash-all is broken.
Yeah, I figured that out after a bit haha
I could have probably written a new script for it, but that wouldn't really do anyone any good, so I just did it manually. Plus I didn't feel like figuring out how to tell a script to wait for bootloader restart. Thank you

please help me revert back to stock oxygenos on my 8 Pro (from LineageOS)

I installed LineageOS, but bluetooth isn't working, and I've had no luck fixing it. I honestly didn't like it more than stock, and I have no desire to fight to make it work.
I just want to go back to stock, but I have had no luck.
Is there some guide to do this that I just cannot find?
I've downloaded what I believe is the most recent full ROM for this device (055f1d0089a2a397bebd5882a9a63bdb779f4834.zip), but trying to flash it using the same tools and method as installing Lineage just is not working. Most recent effort resulted in "Denying OTA because it's SPL downgrade
My brain hurts from searching for answers, and not I just want to give up, but I have a completely factory reset phone in front of me, and I need to get this resolved.
Any help will be much appreciated.
JustinChase said:
I installed LineageOS, but bluetooth isn't working, and I've had no luck fixing it. I honestly didn't like it more than stock, and I have no desire to fight to make it work.
I just want to go back to stock, but I have had no luck.
Is there some guide to do this that I just cannot find?
I've downloaded what I believe is the most recent full ROM for this device (055f1d0089a2a397bebd5882a9a63bdb779f4834.zip), but trying to flash it using the same tools and method as installing Lineage just is not working. Most recent effort resulted in "Denying OTA because it's SPL downgrade
My brain hurts from searching for answers, and not I just want to give up, but I have a completely factory reset phone in front of me, and I need to get this resolved.
Any help will be much appreciated.
Click to expand...
Click to collapse
Have you tried to MSM back to stock yet? Here are the instructions and downloads.
[OP8PRO][OOS 11AA/BA/DA] Unbrick tool to restore your device to OxygenOS
Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...
forum.xda-developers.com
JustinChase said:
I installed LineageOS, but bluetooth isn't working, and I've had no luck fixing it. I honestly didn't like it more than stock, and I have no desire to fight to make it work.
I just want to go back to stock, but I have had no luck.
Is there some guide to do this that I just cannot find?
I've downloaded what I believe is the most recent full ROM for this device (055f1d0089a2a397bebd5882a9a63bdb779f4834.zip), but trying to flash it using the same tools and method as installing Lineage just is not working. Most recent effort resulted in "Denying OTA because it's SPL downgrade
My brain hurts from searching for answers, and not I just want to give up, but I have a completely factory reset phone in front of me, and I need to get this resolved.
Any help will be much appreciated.
Click to expand...
Click to collapse
Did you follow the MSM guide? I have had to run it a million times so if you need help...
devildogwillbur said:
Did you follow the MSM guide? I have had to run it a million times so if you need help...
Click to expand...
Click to collapse
I did eventually find the download and run it successfully. It was frustrating that I had to update about 5 or 6 times to get up to date, but it did eventually get me back to a fully updated, stock phone.
thank you.
thanks!

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