Reverting from CM13 to stock OOS - OnePlus 3 Questions & Answers

After using CM13 for a month, I decided to restore my original OOS 3.2.4 backup yesterday in TWRP (I wiped data, system, cache and dalvik beforehand). After restoring, I rebooted system but it would not get beyond the initial OnePlus logo, so i figured there was something wrong with the backup. I realised it only included boot, data and system, but not system image. Anyway I restored my CM13 backup which is working fine, but I would still like to go back to OOS. Will it work if I do the following...
1) Flash stock recovery
2) sideload full 3.2.4 image through stock recovery
3) factory reset in recovery
Could I avoid factory resetting and keep my storage data if I do this...
1) Flash stock recovery
2) sideload full 3.2.4 image through stock recovery
3) reflash TWRP
4) restore my original OOS backup again (boot, data, system)
Sorry if this has been answered somewhere else, in these forums, but the only threads that talk about returning to stock seem to be for OOS users going back to earlier OOS versions or unrooting and/or relocking the bootloader. None of them mention specifically going back to OOS from a custom ROM as far as I can see. I just wanted to check I'm on the right track.
Thanks

Related

Need to factory restore in TWRP total photos, all.

I am going to sell my n7 to a friend and need to do a full factory restore keeping the rom have not going to stock.
I have paranoid Android with TWRP. I restored it and it didn't delete my photos and music. I have manually deleted these but what else does it not delete that I should take care of before I let it go??
Is there a way to start it FRESH no pics, but still be on my paranoid rom? What option should I choose in recovery?
I messed around last time and accidently wiped my os and don't want to do that again. Please help.
I'd do it manually. Use fastboot to erase everything, flash stock 4.4.4 firmware from Google, flash TWRP, boot into TWRP, use adb to push PA ROM to /sdcard, flash PA.zip in recovery, flash su.zip.
Or just leave stock 4.4.4 and let your friend decide which ROM to use.

May have figured out solution to encryption fails.

Edit: Check this whole first post, because I have made some additional entries concerning failures and potential cures to things. I will update when my current encryption test is complete.
For the short version see the tldr at the bottom.
I have been trying different combinations of things all day in my last ditch attempt to get encryption working without needing to flash my original firmware back on from odin, since I hate the thought of how long it takes and what could go wrong.
The secret that I have worked out today is I install TWRP, wipe everything out, factory reset, wipe etc. Then install the rom, in my case it was my TWRP backup of my original firmware installed and then later CM11 M12, then immediately after flashing, reboot to download mode and flash the stock recovery image (I had to get a guide and use my linux VPS to turn the extracted recovery.img into a .tar.md5 and use that for flashing my original recovery. Then boot to recovery (now the genuine original recovery) and perform a factory reset. Then boot the phone up and the encryption works. Right now CM11 is at 38% encryption! Just before I started this off, I also had 100% success with encryption using my TWRP backup of a stock firmware install, using this same method. Once it is encrypted I will flash TWRP back on here as I did before and it should be good.
My theory (I am too burned out to test it at this point, I just want my phone working...) is that the issue is not whether you have TWRP installed, but whether the final factory reset (before booting up phone for usage) is performed by an official recovery or a third party recovery. So I bet it would work if you perform the factory reset and then immediately flash TWRP back on there and then boot up and perform the encryption.
Plus, in theory since I am using CM11 encryption, TWRP should be able to access /data which means I can keep this encryption and flash what ever rom I want using TWRP and upon booting it "should" just work. I tested this once before when I lucked out and got encryption working on some rom (I forget now which it was) but I was able to do a wipe with TWRP and install a different rom and the encryption still worked, still booted up fine.
Do you have any thoughts on this topic? Maybe I am reinventing the wheel...? I have not seen any of this referenced in any of the text or video guides I have been checking out. So I thought I would share this just in case. It might work for other samsung phones too.
STAND BY. The encryption did not work and I am trying a slight modification that is also proceeding. I am 19% on encrypting CM10.2. This time I did the usual TWRP wipes and then once wiped, Immediate flash of the original stock recovery (no OS install yet), then perform a factory reset and then flash TWRP again. Then I installed CM10.2 and skipped through the setup wizard and went straight to setting up encryption. Where usually it fails, it is actually performing the encryption. I have hopes that since the factory reset from the stock firmware's recovery was performed BEFORE the OS install, that it should... should work this time. I have a feeling the prior one failed because of doing a factory reset from one rom's recovery on a different rom's OS. So doing the factory reset before the OS install might be what will make it work. I will update soon.
Edit: It worked flawlessly... Booted up, authenticated, everything is fine. I am now running the same test with CM11 (M12) Also, I am not sure if this will work, but once I performed the final factory reset via the stock recovery (before re-flashing TWRP to begin OS install) I made a backup. My hope is that instead of reflashing and re-flashing back and forth, that the backup I made will have everything ready as if I had done a stock recovery based factory reset. If I decide to ditch CM11 I will test this theory out. I should also mention that the last test I mentioned with CM10.2 worked even though TWRP was presently still installed. So the presence of the stock recovery is not required, rather it is the factory reset from a stock rom being the final step required before the OS ROM install process.
Edit: There seems to be an issue with CM11. Twice now it has failed to work on CM11. I will try CM12 next, using my backup of a freshly official factory reset. If it fails I will do the whole process on 12 and see if it works and report back.
Edit: CM12 encryption by using the TWRP backup of a freshly factory reset (via stock recovery) failed. I am in the process of waiting for the first initial boot and setup wizard to complete of my second attempt at CM12 encryption via the full final step of actual stock recovery factory reset before CM12 installation via TWRP that is flashed after the stock recovery factory reset. I will update if this works. If it works and boots up correctly while encrypted, then it means a TWRP of a stock recovery factory reset is not adequate to replicate a true factory reset and the developers of TWRP should be made aware of this so they can enhance their own factory reset feature to allow encryption to work. If it doesn't work then there is something definitely wrong with CM11 and CM12 since both the stock firmware and CM10.2 encrypt using this full factory reset method. Stay tuned, wizard just came on screen...
Edit: Ok, weird... this time the encryption process has begun, whereas using my TWRP backup that was made after doing the stock factory reset did not get to this point, although the percentage counter started from 100% and counting... Right now the encryption is at 146% completed. That is very odd... I will report back if the encryption process actually ends up with a successfully booting phone or not, since CM11 failed at the booting phase. Before I save this edit, ne thing I am noticing is the progress percentage is going up rather fast compared to any other ROM. Right now it is at 177% and right now it is 179%, now it is 183% and I type fast... Stay tuned.
Edit: The encryption process worked and rebooted, asked for authentication and came up, however upon unlocking verious apps like CM bug reporter and whisper and others crash sometimes resulting in a OS loading screen and a fresh unlock needing to be performed.
tldr: When installing ANY rom, you need to wipe the file systems with TWRP or other similar recovery, then flash your stock firmware's recovery image (not the whole firmware, just the recovery, which means you need to extract the recovery.img from your flash file using 7zip and then follow these instructions: http://www.w0lfdroid.com/2013/04/android-how-to-convert-img-recovery-to.html to create a .tar.md5 file that odin can use to flash your recovery rom. (load odin, click AP or PDA and set your recovery tar.md5 and untick the two boxes that are always on by default. I use Odin v3.09). Then after you have wiped the file systems with TWRP (format data, then wipe the other mount points) then with your stock recovery perform a factory reset. Then flash TWRP or what ever custom recovery you use and just install your ROM, no other formatting or anything else, just install (not restore). Then the encryption will work, assuming there are no bugs in the rom that prevent it working on your handset, as seen on my handset with CM11 and the weird bugs with apps crashing on CM12.
So my recommendation is that the developer(s) of TWRP change the way they perform the factory reset, to emulate the actual process that a stock recovery uses, so that you do not need to keep reflashing your recovery images over and over when you need a fresh install.
Notes: CM11 M12 fails to boot, post successful encryption process, while CM12 nightly (18th March 2015) has bugs with apps crashing after successful bootup post encryption.
I have verified all this twice since. It is the stock recovery factory format that is needed before you install your ROM. I hope this helps the other people that I have seen having encryption problems.

Stuck in bootloop. Fastboot and recovery working just fine.

Background:
1. Was on the latest Resurrection Remix. Made a Backup with TWRP.
2. Went back to stock [MTC20F] using this.
3. Updated to 7.0 using this threads 7.0 OTA.
4. Made a Backup in TWRP.
I restored the backup from point 1, but now my phone won't boot anymore.
It shows the boot animation for about 1 second. Goes black and reboots.
I tried restoring to 6.0.1 using the method in point 2 -> same problem.
Tried restoring to 7.0.0 using the same method -> same problem.
After that, I tried restoring from both of my TWRP backups. Neither of them get any further.
So, no matter what I do I cant get past the first second of the boot animation.
I'm out of ideas, any help is greatly appreciated!
TWRP version 3.0.2.1
MiePx3 said:
Background:
1. Was on the latest Resurrection Remix. Made a Backup with TWRP.
2. Went back to stock [MTC20F] using this.
3. Updated to 7.0 using this threads 7.0 OTA.
4. Made a Backup in TWRP.
I restored the backup from point 1, but now my phone won't boot anymore.
It shows the boot animation for about 1 second. Goes black and reboots.
I tried restoring to 6.0.1 using the method in point 2 -> same problem.
Tried restoring to 7.0.0 using the same method -> same problem.
After that, I tried restoring from both of my TWRP backups. Neither of them get any further.
So, no matter what I do I cant get past the first second of the boot animation.
I'm out of ideas, any help is greatly appreciated!
TWRP version 3.0.2.1
Click to expand...
Click to collapse
Did you boot into recovery and do a factory reset in there. Sometimes that works.
jsgraphicart said:
Did you boot into recovery and do a factory reset in there. Sometimes that works.
Click to expand...
Click to collapse
Yep, every time I try to restore something I wipe everything. Also tried to lock and unlock the bootloader. No Luck.
Also tried wipe and erasing every partition possible, flashing an older 6.0.1 build.
Am I SOL? I tried anything google would give me....
Hey, I'm currently in the very same situation. Was on 6.0.1 stock rooted, applied 7.0 OTA using the beta program. Then for various reasons wanted to roll back to where I was with 6.0.1, but now the device just constantly reboots. I have wiped everything I can, tried to flash the factory images multiple times, but nothing seems to do the trick.
same problem here
i was on rooted android n preview 5 with twrp recovery and root, i applied 7.0 ota and then it bricked
now it starts up till bootscreen with the 4 coloured dots it freezes and goes in a bootloop but fastboot and recovery working fine
flashed a factory image wiped everything tried diffrent things restored a twrp backup but nothing
now im going to try to flash 7.0 ota again
Also in the same situation :crying:. Gets to the boot animation for 1 second then freezes and restarts.
Updated to 7.0 and got stuck in a bootloop.
Then tried restoring my TWRP backup to no avail.
Then tried flashing 6.0.1 factory image and still no luck.
Done factory resets, wiped system, data partitions etc, and still same problem.
If anyone has any other ideas that would be greatly appreciated!
this is what i tried so far
-wiped and restored 3 diffrent backups
-full wipe and flashed diffrent roms
-flashed factory image 6.0 and 6.0.1
-flashed 7.0 ota zip in twrp (extracted and flashed system.img and vendor.img )
-flashed factory image and used stock recovery to flash 7.0 ota.zip trough ADB sideload
i think im going to relock the bootloader and just send it back to google for a repair
I'm on the same situation
32 hours after updating to final 7.0 from stock dp5 the device turned off and stuck on boot animation
it seems like google did something wrong...
Looks like some people with the 6P are having the same issue as well. Still no fix either.
http://forum.xda-developers.com/nexus-6p/help/botched-nougat-install-phone-boot-loop-t3445709
I've had the same problem. I was coming from from a Pure Nexus install and thought i'd have a look at 7 so I made a full backup in TWRP then installed the lastest TWRP (twrp-3.0.2-1-bullhead). Then did a full wipe all bar internal storage and flashed radio/bootloader zip and Stock+ rom from the tupac4u thread which worked fine. Upon deciding there were a few dealbreakers for me I decided to go back to PN. So I booted back into TWRP, wiped again and restored the previously made backup. that's when I was getting the boot to 4 dots and reboot bootloop. I tried everything flashing various MM roms, and flashing 7 again, different roms / vendor images / full wipes including int storage, all via TWRP and ADB to no avail.
Though this evening I decided to go to an even earlier version of TWRP (twrp-3.0.0-1-bullhead) and try everything again. I flashed that and tried the repair filesystem on all the partitons I could, one of them gave an error I can't remember what it was. After doing that I did a full wipe and restored my PN backup, everything ticked. I then rebooted with everything crossed and it worked, it booted without any problems! (apart from the fact i'd forgot to remove the pin security before backing up so had to reflash anyway! which also worked). I can't be sure which part of that fixed it but if it helps anyone else that's great!
People with this problem - Does flashing new Factory Image 7.0.0 (NRD90M) fix something?
Just curious.
zeesyl said:
People with this problem - Does flashing new factory image 7.0.0 (NRD90M) fix something?
Just curious.
Click to expand...
Click to collapse
Nope, changed nothing in my case at least. At this point I'm just going to use the warranty card to get out of this mess, as nothing seems to revive the device.
MiePx3 said:
Background:
1. Was on the latest Resurrection Remix. Made a Backup with TWRP.
2. Went back to stock [MTC20F] using this.
3. Updated to 7.0 using this threads 7.0 OTA.
4. Made a Backup in TWRP.
I restored the backup from point 1, but now my phone won't boot anymore.
It shows the boot animation for about 1 second. Goes black and reboots.
I tried restoring to 6.0.1 using the method in point 2 -> same problem.
Tried restoring to 7.0.0 using the same method -> same problem.
After that, I tried restoring from both of my TWRP backups. Neither of them get any further.
So, no matter what I do I cant get past the first second of the boot animation.
I'm out of ideas, any help is greatly appreciated!
TWRP version 3.0.2.1
Click to expand...
Click to collapse
Type fastboot -w flash falsh vendor vendor.img then restore from your twrp backups
neaznc021 said:
OMG I finally got mine to work
I'll note down the exact steps , most of which may or may not be relevant
1) Flashed MTC20F using TWRP 3.0.2-1
2) Booted into recovery and wiped everything and the partitions
- Add - Booted back into twrp 3.0.2-1 and then swiped to allow modifications
3) Then fastboot flashed TWRP 3.0.2-0
4) Restored my backup ( except recovery)
5) Still got stuck in the google screen.
Now the next parts are a bit weird
6) Booted into TWRP, flashed vendor.img from pure nexus rom
7) wiped everything except internal storage
8) Flashed vendor.img, pure nexus rom and gapps and then flashed vendor.img again
9) Rebooted and it worked
Let me know if it worked for you guys or if you need any more help
Click to expand...
Click to collapse
this worked for me
neree said:
Nope, changed nothing in my case at least. At this point I'm just going to use the warranty card to get out of this mess, as nothing seems to revive the device.
Click to expand...
Click to collapse
Did that yesterday (With my N6P), will see what will come out of it. (Service guys said, that ''Oh, it's nothing serious, tomorrow (today) you will get your phone back (hopefully in working condition)''. I'm not so sure about that
(EDIT: Before I took my phone to warranty service, I flashed latest MM factory image and locked bootloader, maybe it was unnecessary, but I wanted to be sure, that phone looks fresh, maybe it was a big mistake.)
I had the same Bootloop issue, and it's all because of TWRP 3.0.2-1 !!! I have just reverted back to TWRP 3.0.2-0, and my backup restored just fine. There's no point for all that flashing. Just revert the TWRP.
Oh my... Guess what? My backup is corrupted...
Edit: maybe this can help, before bricking with full factory image, I flashed bootloader, radio, boot, vendor, system, Elementalx and supersu, wiped data and booted and work.
But I had problems with suspersu installed as systemless (it didn't work), so I flashed factory image. And bootlooped.
So, I'd say that what's causing issue is userdata, recovery or cache.

Issues flashing ROM

I'm having some issues flashing any ROM. TWRP will not wipe data, or internal SD
For some reason, when I go to wipe data and factory reset, TWRP will say it was successful, but nothing ever gets wiped. It will only wipe system if I choose to. I've gotten a ROM to flash but when it boots up, all of the old apps and user data are still there and it makes everything crash. I've gotten into settings to do a reset, it reboots into recovery, runs the script, and still nothing wipes.
What I have tried:
Old TWRP, newest TWRP
CWM (seems to wipe but it won't get past the note 2 screen after flashing anything)
Wiping with CWM, flashing TWRP, then flashing a ROM (still loops after the note 2 screen)
Is there a terminal command I can use in TWRP to manually wipe things?
Thanks for any help I can get, I've flashed so many phones I can't remember but I've never had this issue
Maybe flash back to a stock ROM, factory wipe using stock recovery, then flash TWRP?
audit13 said:
Maybe flash back to a stock ROM, factory wipe using stock recovery, then flash TWRP?
Click to expand...
Click to collapse
Well when it bootloops t the Note 2 screen, I have to flash a ROM with Odin to get it working again. I've flashed a stock ROM with Odin, flashed TWRP with Odin, tried the wipes and it never wipes anything... I'm lost...
Isn't there a format function in TWRP that is seperate from the factory reset or advanced wipes? I was also trying to find a terminal command to type in the terminal in TWRP... I'm a little stumped...
I'm sorry, I read that too fast... That may actually work, wipe it in the stock recovery, and just don't let it boot into the system before flashing other stuff... I'm gonna try that out... Thanks man, I'll post back about it...
Since you are flashing the phone with Odin, is it a stock 4.1.1 ROM you're flashing? Which custom ROM are you flashing to the phone?
audit13 said:
Since you are flashing the phone with Odin, is it a stock 4.1.1 ROM you're flashing? Which custom ROM are you flashing to the phone?
Click to expand...
Click to collapse
The stock ROM I used is I317-ODIN-UCUCNJ1-Stock without the booloader packaged in, I'm still on the old bootloader. It's 4.4.2
The ROMS I've tried to flash was
Cyanide (Error 7, says incompatible data, please wipe the phone)
Resurrection Remix (Error 7, says incompatible data, please wipe the phone)
Latest CM10 Nightly
I got CM10 and Resurrection Remix to flash a couple times, but the phone boots and all the old apps and data, including the AT&T ones are still there, and the system keeps crashing. Then I change the recovery to CWM because it seems to wipe, change back to TWRP, flash the ROM and gapps again, but it bootloops at the Note 2 screen.
Should I try the 4.1.1 ROM and CWM? Whenever I'm going from a stock TW to non-TW I like to format everything, data, cache, system, and internal SD, but of course TWRP won't wipe the data or the internal SD.
It's probably because the bootloader and modem are too old for the roms. Recent roms will need updated bootloaders.
Ok, I had some more time to mess around with this today and figured it out. I feel kind of dumb but oh well, I got it.
TWRP was already loaded on, so I went to messing with it again. The 'Swipe to factory reset' was not wiping the data, and there was the 'Format Data' button right there in front of me. I did the factory reset, format data, rebooted recovery, wiped dalvik, cache, and system, then flashed the ROM and everything booted up just fine.
Thanks for all of the help!

Bootloop after restoring a nandroid backup

I made a backup of my 5x when it was running rooted/xposed 6.0.1 but then decided to update to 7.1.1 to try out the new features. But now I really miss a lot of xposed modules so I decided that I want to restore my 6.0.1 backup that I made a couple of weeks ago. So I flashed the 6.0.1 factory image from Google's developer website and was able to successfully boot into Marshmallow again. However after installing TWRP I tried restoring the backup (through USB OTG) after wiping system and cache and a doing factory reset but it pauses on "restoring system image" for a brief moment then proceeds to reboot by itself despite that it's only 27% complete. The reboot however does not go to completion and so the phone is stuck in a bootloop. I'm really not sure where the problem is here. Is it TWRP? Or the backup file? What can I do?
Which version of TWRP have you used? By any chance the backup also contained EFS?
marioemp2k7 said:
Which version of TWRP have you used? By any chance the backup also contained EFS?
Click to expand...
Click to collapse
I used version 3.0.2-2.
And isn't EFS supposed to be backed up anyway? I just checked the backup folder and it contains 4 files that begin with "efs". Should I delete those and try again?
Format everything from TWRP except internal storage. Restore your backup without EFS. Next time you want to come back to another version just be sure that you also backup the vendor or you flash the vendor corresponding to the version you're restoring beforehand.
marioemp2k7 said:
Format everything from TWRP except internal storage. Restore your backup without EFS. Next time you want to come back to another version just be sure that you also backup the vendor or you flash the vendor corresponding to the version you're restoring beforehand.
Click to expand...
Click to collapse
I made the backup while I was running 6.0.1 and I flashed the 6.0.1 factory image so they both should have the same vendor image.
I also tried wiping everything except for internal storage and I unchecked "EFS" when restoring the backup but the same problem still persists, the phone automatically reboots itself before the restoring is complete and gets stuck in a bootloop. I'm not sure where the problem is at this point. I guess I'll just have to start from scratch again

Categories

Resources