Downgrading from Marshmallow if I have custom recovery - K3 Note Q&A, Help & Troubleshooting

Hi everyone, this question was asked already but I just want to make sure that it's safe to flash a 5.1 based ROM over a currently active Marshmallow ROM using TWRP using only the usual wipes? I remember that I had to flash a custom boot image with a PC or something like that in order for the custom recovery to work on my K3 Note, which I received with Marshmallow installed, so I'm not sure if I can hop back to 5.1 if phone never even had it installed. Any advice?

livgrave said:
Hi everyone, this question was asked already but I just want to make sure that it's safe to flash a 5.1 based ROM over a currently active Marshmallow ROM using TWRP using only the usual wipes? I remember that I had to flash a custom boot image with a PC or something like that in order for the custom recovery to work on my K3 Note, which I received with Marshmallow installed, so I'm not sure if I can hop back to 5.1 if phone never even had it installed. Any advice?
Click to expand...
Click to collapse
Yes, IT IS SAFE but there are some points to note:
Every Rom Zip contains a boot.img file which is also flashed when the zip is flashed.
You do not need to replace boot.img in order to install TWRP, but you need it to flash SuperSU.zip to your device or install xposed
Remember You need to wipe data partition (No need to wipe Internal) in order to continue.

Thanks for the reply. I don't know why, but I remember when I was installing TWRP I couldn't boot into it until I flashed a new boot image or something like that. All I could boot into was the stock recovery or something like that. I needed to use SP flash tools and flash something in order to get it to work. So it's safe for me to try 5.1 ROMs? They seem to be more stable than custom Marshmallow ROMs....

livgrave said:
Thanks for the reply. I don't know why, but I remember when I was installing TWRP I couldn't boot into it until I flashed a new boot image or something like that. All I could boot into was the stock recovery or something like that. I needed to use SP flash tools and flash something in order to get it to work. So it's safe for me to try 5.1 ROMs? They seem to be more stable than custom Marshmallow ROMs....
Click to expand...
Click to collapse
You must have flashed the recovery.img ( and also the boot.img) because my root methods mention them.

Related

[Q] Will OTA from Sense 4.3 to 4.4 unroot and wipe my custom recovery?

Hello,
I have a Developer Edition (unlocked) with Stock 4.3 at the moment, is rooted and with TWRP 2.6.3.0 custom recovery, my phone is asking me to upgrade to 4.4. My questions are:
- What would be the results of the upgrade?
- It will flash over my custom recovery without problems?
I guess I will loose root and custom recovery but I can flash them again, my main concern is that the OTA will not flash correctly for being rooted and with custom recovery. Thanks a lot for those that know the answer and want to help me.
gustavorod said:
Hello,
I have a Developer Edition (unlocked) with Stock 4.3 at the moment, is rooted and with TWRP 2.6.3.0 custom recovery, my phone is asking me to upgrade to 4.4. My questions are:
- What would be the results of the upgrade?
- It will flash over my custom recovery without problems?
I guess I will loose root and custom recovery but I can flash them again, my main concern is that the OTA will not flash correctly for being rooted and with custom recovery. Thanks a lot for those that know the answer and want to help me.
Click to expand...
Click to collapse
i guess you cant flash official OTA through custom recovery..u need stock recovery to do this
gustavorod said:
Hello,
I have a Developer Edition (unlocked) with Stock 4.3 at the moment, is rooted and with TWRP 2.6.3.0 custom recovery, my phone is asking me to upgrade to 4.4. My questions are:
- What would be the results of the upgrade?
- It will flash over my custom recovery without problems?
I guess I will loose root and custom recovery but I can flash them again, my main concern is that the OTA will not flash correctly for being rooted and with custom recovery. Thanks a lot for those that know the answer and want to help me.
Click to expand...
Click to collapse
Actually, you won't be able to do an OTA update when you've a custom recovery (you shouldn't even get it in the first place, sometimes it comes through), if you try to apply the OTA, you'll boot back to the TWRP recovery.
So, you should either go full stock (recovery & ROM), then do an OTA. Or flash some 4.4 Custom ROM.
By itself the phone alerted me that the OTA download is available and wants to download and flash itself as it did when it upgraded from 4.2.2 to 4.3 so I am not planning to flash through TWRP...
gustavorod said:
By itself the phone alerted me that the OTA download is available and wants to download and flash itself as it did when it upgraded from 4.2.2 to 4.3 so I am not planning to flash through TWRP...
Click to expand...
Click to collapse
it will download OK, but when it reboots to start installing, you'll just see the TWRP screen and nothing is gonna happen; because the OTA expects stock recovery.
Thanks!!!!
I guess I better flash another 4.3 or 4.4 by myself, I just thought the OTA would be better first to upgrade to the latest firmware...
gustavorod said:
I guess I better flash another 4.3 or 4.4 by myself, I just thought the OTA would be better first to upgrade to the latest firmware...
Click to expand...
Click to collapse
you can do two things:
1- get s-off and flash any firmware you want
2- "download & install later" the OTA, once downloaded pull it to your PC, the OTA file will contain a "firmware.zip" which is signed and can be flashed in fastboot ruu mode (you have to issue the flash command twice!!!), which would upgrade your firmware (including hboot, kernal and recovery), but will leave your rom intact
----- because it flashes recovery, you need to reflash custom recovery
----- and, kernel (boot.img) you'll need to reflash the custom one (or dirty install the ROM), otherwise the ROM won't boot up
nkk71 said:
you can do two things:
1- get s-off and flash any firmware you want
2- "download & install later" the OTA, once downloaded pull it to your PC, the OTA file will contain a "firmware.zip" which is signed and can be flashed in fastboot ruu mode (you have to issue the flash command twice!!!), which would upgrade your firmware (including hboot, kernal and recovery), but will leave your rom intact
----- because it flashes recovery, you need to reflash custom recovery
----- and, kernel (boot.img) you'll need to reflash the custom one (or dirty install the ROM), otherwise the ROM won't boot up
Click to expand...
Click to collapse
I've looked around for a CWM compatible version of the Dev Edition + Root, but I'm not finding one. Is anyone aware of a CWM-packaged version that I can flash using CWM on a rooted device? Reverting to stock to pick up the OTA seems like a long way to go

[Q] Xperia V, trouble installing CM12

Hello
I have unlocked BL and rooted.
I've been trying to install CM12 on my Xperia V but everytime I'm in recovery and trying to flash CM12 it just aborts in the middle of it, and if i remember it gives an error a long the lines of "device is mint, rom isn't" I tried this rom http://forum.xda-developers.com/xpe.../rom-cyanogenmod-12-neo-s-homebuilds-t2967819
Since that pretty much bricked the phone Im back on stock JB [4.3] and I actually tried it twice, and no luck. Haven't tried any other roms since re-rooting and installing cwm/twrp is such a pain with xperia V and im not interested in anything else other than CM11/12.
I tried search but no luck
So, the question is, whats the most painless way to get CM11/12 on my phone, and what do I have to keep in mind while doing it. I'm very new to the phone and haven't figured out everything that I need to know I suppose.
Heres some "about phone"
Model : LT25i
Android ver: 4.3
Kernel ver: 3.4.0
Build number: 9.2.A.2.5
Either remove the first line in my rom zip/META-INF/com/google/android/updater-script (this will disable device verification, so do so at your own responsibility), then repack the rom zip and flash - or fastboot flash my rom's boot.img before installing the zip itself.
WhiteNeo said:
Either remove the first line in my rom zip/META-INF/com/google/android/updater-script (this will disable device verification, so do so at your own responsibility), then repack the rom zip and flash - or fastboot flash my rom's boot.img before installing the zip itself.
Click to expand...
Click to collapse
Thanks for the fast answer. So I'll just root and install twrp yet again, then flash your boot.img in with flashtool and THEN wipe/factory reset from twrp and install your ROM, right ?
villur700 said:
Thanks for the fast answer. So I'll just root and install twrp yet again, then flash your boot.img in with flashtool and THEN wipe/factory reset from twrp and install your ROM, right ?
Click to expand...
Click to collapse
Actually, no need for root and twrp. Just go ahead, flash the kernel, then reboot to recovery and follow the installation steps in my CM12 thread

I have failed at flashing

Yes, another one of these threads, but I need some help.
I got the bootloader unlocked, flashed twrp into recovery using fastboot. Unfortunantly the device rebooted into stock which I'm reading got rid of twrp. One problem is I can't figure out how to get twrp on there, and to stay on there, so I can use it.
Ignoring this issue I just continued. The guide simply said flash cm11. I searched around for a little bit on how to do this with fastboot (since my twrp wasnt working), but ended up doing the stupid thing of running:
fastboot flash system cm-11-20141115-SNAPSHOT-M12-ghost.zip
I know my problem is that I flashed the system with just a zip update file. I should've performed an update.
But now I can't figure out how to find the stock system image for my phone, the actual img file, so I can flash the system again. I have a sprint moto x.
Thanks for any help!
mobone32 said:
Yes, another one of these threads, but I need some help.
I got the bootloader unlocked, flashed twrp into recovery using fastboot. Unfortunantly the device rebooted into stock which I'm reading got rid of twrp. One problem is I can't figure out how to get twrp on there, and to stay on there, so I can use it.
Ignoring this issue I just continued. The guide simply said flash cm11. I searched around for a little bit on how to do this with fastboot (since my twrp wasnt working), but ended up doing the stupid thing of running:
fastboot flash system cm-11-20141115-SNAPSHOT-M12-ghost.zip
I know my problem is that I flashed the system with just a zip update file. I should've performed an update.
But now I can't figure out how to find the stock system image for my phone, the actual img file, so I can flash the system again. I have a sprint moto x.
Thanks for any help!
Click to expand...
Click to collapse
Update. I got it up and running again on stock. But am still confused about the flashing twrp so it sticks and the flashing cm11. Thanks again
mobone32 said:
Update. I got it up and running again on stock. But am still confused about the flashing twrp so it sticks and the flashing cm11. Thanks again
Click to expand...
Click to collapse
you should be able to install TWRP by using the command, "mfastboot recovery twrp.img"
regarding CM11, I don't think is needed anymore to go from CM10 to CM12. it was at one time, but I believe CM or TWRP made some updates so that step is no longer necessary.
but before we can help you further, let us know what ROM you are on now and what ROM you want to be on next.
also, this thread is very helpful: http://forum.xda-developers.com/moto-x/general/official-collection-firmwares-fxz-sbf-t3146628
Ok I got TWRP on there. Now I would like to get to lolipop 5.1 one way or another. I've always liked CyanogenMod (of course) but want to try CyanHacker. http://forum.xda-developers.com/moto-x/development/rom-cyanhacker-lollipop-ghost-t3033367
Right now I'm on a stock sprint rom I got with kitkat 4.4.4
Here's what I was going to do: (copied from forum)
1. mfastboot flash the latest TWRP if you aren't already at that point. I won't help you on fastboot things as you should already know- look around in the forums for info.
2. BACKUP YOUR STUFF- don't want to lose things without being able to get them back, right?
3. Flash the downloaded CM11 snapshot.
(Heres where I'm stuck. This is where I soft bricked it last night. I tried just now to apply the update using twrp and it just fails. It also fails at rooting my phone.)
4. Let CM11 fully boot and go through the setup screen- just skip everything and get to the homescreen.
5. Reboot into Recovery and wipe EVERYTHING- system, data, dalvik cache, cache, etc.
6. Flash your Lollipop ROM.
7. Flash PA-gapps.
8. Flash SuperSU.
9. Wipe cache/dalvik cache.
10. Reboot.
11. ???
12. Profit.
Thanks for any help!

[Q] TWRP Flashable zip?

Hi Nexus 6 Community
Im new to own a Nexus 6 but Im an "enthusiastic flasher" per say. I've being looking around with no luck so I was hopping someone will point me to the right direction:
Usually whenever I flash anything on my previous phones I like to flash TWRP again in case of boot loops or something flashing bad that could delete or corrupt my custom recovery. I'm rooted and installed the latest TWRP through fastboot, but as I previously said, I would like to have a flashable zip to ensure my recovery will be installed and have a higher chance of not being locked out of my phone.
Or I'd notice you can flash images through TWRP, will this re-install my recovery using the TWRP .img file?
I really appreciate all for your help, thanks
Once you boot into twrp for the first time it patches /system to prevent the stock rom from replacing it unless you choose the "keep system mounted as read-only." This option is only offered to you if you boot into twrp with an untouched /system. And as for worrying about being locked out of your phone, as long as you have an unlocked bootloader you can always use a google factory image to get back to stock w/o a custom recovery.
I'd assume no one's made a flashable zip for twrp because reflashing it wouldn't accomplish much of anything if you already have twrp to flash it in.

Install official rom without pc

Hi Dear
i want instal official firmware wihout pc , my device usb port has damaged and not recognized with pc ,,
Can i install offucial rom with custom recovery ???
tnx alot ...
k.pax said:
Hi Dear
i want instal official firmware wihout pc , my device usb port has damaged and not recognized with pc ,,
Can i install offucial rom with custom recovery ???
tnx alot ...
Click to expand...
Click to collapse
If the device boots and you can download a factory OTA to the device, you should be able to install it like any other ROM in TWRP. Going back to stock will remove TWRP and restore the stock recovery.
ktmom said:
If the device boots and you can download a factory OTA to the device, you should be able to install it like any other ROM in TWRP. Going back to stock will remove TWRP and restore the stock recovery.
Click to expand...
Click to collapse
tnx for answer :good:
yes phone now boot up and i have Nitrogen custom rom ,,
but ota rom just install whit pc , is there official rom with custom recovery capability??
k.pax said:
tnx for answer :good:
yes phone now boot up and i have Nitrogen custom rom ,,
but ota rom just install whit pc , is there official rom with custom recovery capability??
Click to expand...
Click to collapse
I saw your post in the other thread, but it's off topic there, so I'm responding here.
I'm not sure why you want to revert to stock. There is the Pure Nexus ROM which is closer to stock with some nice improvements. The last release was July 2017 ( last stock October 2017).
There's a couple of ways to get stock on the N6 while keeping TWRP without needing a USB port.
One is to do what I described above, and flash the full factory OTA file in TWRP. To save TWRP, you would need to do a backup of the recovery partition, then restore it before leaving TWRP. There's also the issue of encryption, but if your device is decrypted, a no force encrypt zip can be used. What I'm not sure about is, if your device is encrypted, will that affect TWRP on the next reboot. There have been some glitches. One thing I would definitely do is remove all screen locks, boot passwords, nothing but swipe to unlock.
I actually dusted off my N6 and tested this several times today successfully. I could provide you with exact instructions.
The second method is to create a TWRP flashable ROM using the stock system and boot images. What bootloader are you on? What was the last stock version installed? If you're not sure, reboot to the bootloader and grab the information from the screen. The line starting with "BL moto-".
If you are on the final bootloader, then I have a zip that you could use. If your bootloader is older than mine, I can't test a ROM that I make though.

Categories

Resources