Bootloop after updating to B27 - ZTE Axon 7 Questions & Answers

Hey folks,
i have a big problem updating my Axon 7 to B27. I've tried everything, stock system B20 then updating to B27, causes the same bootloop as restoring (system or TWRP Backup) B27 direct through TWRP.
The next thing is i can't update my Recovery to the newest TWRP version, i get only black screen if i start to the recovery after updating. Only the recovery from tenfar B20 root is working so far.
I'm unlocked and rooted, but tried to lock the bootloader with the same result as above.
@DrakenFX, @Unjustified Dev, maybe you have some ideas?
Best Regards

Even if i update with @DrakenFX B27 Bootstack and Update i only get to the SIM lock screen and the phone reboots.
Is nobody else facing this problems?

Related

Need some users to test a kernel :)

Can any harpia user , with a unlocked bootloader, test a kernel ?
Thanks in advance
I am unlocked, TWRP and root. Still on stock ROM. Just let me know if I can help.
I have unloked boot loader on stock rooted. let me know if I can help.
have unloked bootloader on stock rooted and xposed.let me know if I can help.
Can do as well!
XT1607 model (unlocked G4 Play) already Unlocked Bootloader, TWRP successfully flashed ... BUT NO ROOT YET! I'm stuck in startup bootloop after attempting to install SuperSU.zip from TWRP... (already tried the SUfixer.zip - no help) Also I tried wiping everything via TWRP. Is there an original stock firmware/rom/kernel/etc that I can try re-flashing to fix the bootloop? I can get into fastboot and recovery but I haven't been able to resolve the softbrick. I'm the one who always tells everyone to backup their data before trying anything. And of course I don't take my own advice!
natesc0tt said:
XT1607 model (unlocked G4 Play) already Unlocked Bootloader, TWRP successfully flashed ... BUT NO ROOT YET! I'm stuck in startup bootloop after attempting to install SuperSU.zip from TWRP... (already tried the SUfixer.zip - no help) Also I tried wiping everything via TWRP. Is there an original stock firmware/rom/kernel/etc that I can try re-flashing to fix the bootloop? I can get into fastboot and recovery but I haven't been able to resolve the softbrick. I'm the one who always tells everyone to backup their data before trying anything. And of course I don't take my own advice!
Click to expand...
Click to collapse
https://www.filefactory.com/folder/c6cdedc45a775d27/?sort=created&order=DESC&show=100

"System" deleted, mild softbrick. Best way to fix?

I am no noobie when it comes to android rooting since I root and flash all of my android devices. But the axon 7 is a really tough son of a b*tch.
I got it brand new. Unlocked the bootloader then proceeded to update to marshmallow just so I can get nougat on my device. Then I installed TWRP so I can flash supersu, xposed and an audio mod zip. I believe this audio mod is what killed my devices since it was not booting into the os. Just stuck at the flashy axon booting screen. I booted into TWRP, deleted data, system and system storage and installed the nougat 2,6gb "update.zip" file. Since then the os is not booting at all, its just stuck at the booting screen, the warning because of the unlocked bootloader. And also, now, stock recovery is installed.
I have an idea how to fix this I am rather cautious so thats why Im asking the experts here first
EDIT: I have the 2017G Version
I have an A2017U, but if you can get your hands on an official Marshmallow zip, then that should hopefully let you boot. From there you can OTA update back to Nougat, then you just need to figure out how to install TWRP again.
Another recovery method is to flash EDL files with MiFlash while your phone is booted into EDL mode.
As for audio mods, I just use Arise, it's very comprehensive and has never bricked my phone.
I have an idea why you can't boot after flashing the Nougat zip: you triggered dm-verity. You must also flash a root zip that patches out the dm-verity. Or you can use @jcadduono's "no verity opt encrypt" zip as an alternative if you don't want to root. Your system and cache partitions should be formatted as ext4, and data should be F2FS. I recommend a full wipe of all partitions except the MicroSD.
GriechischerYoghurt said:
I am no noobie when it comes to android rooting since I root and flash all of my android devices. But the axon 7 is a really tough son of a b*tch.
I got it brand new. Unlocked the bootloader then proceeded to update to marshmallow just so I can get nougat on my device. Then I installed TWRP so I can flash supersu, xposed and an audio mod zip. I believe this audio mod is what killed my devices since it was not booting into the os. Just stuck at the flashy axon booting screen. I booted into TWRP, deleted data, system and system storage and installed the nougat 2,6gb "update.zip" file. Since then the os is not booting at all, its just stuck at the booting screen, the warning because of the unlocked bootloader. And also, now, stock recovery is installed.
I have an idea how to fix this I am rather cautious so thats why Im asking the experts here first
EDIT: I have the 2017G Version
Click to expand...
Click to collapse
If you still have TWRP, download Raystef66's B09 TWRP flashable Stocksystem and Bootstack, plus Magisk 15.2. Flash everything then wipe data.
What broke your device was probably Xposed.
Also, which audio mod are you talking about? Ainur, V4Android, V4ARISE, AK4490 patch, maybe some other?
Thanks for the help! i Managed to flash TWRP in EDL mode (black screen). Then I proceeded to flash nougat B9. I was up all night reading about it and searching tutorials how to flash stock from TWRP. I installed Bootstack and System, supersu 2.79 and xposed. First boot did not work but that was actually in the guide so I had to flash system and root again. My data partition is ext4 and everything works good now. I hope it wont make any problems.
The audio mod was "divine 10" or something. I will try the ones you have mentioned.
Thanks for all the help
GriechischerYoghurt said:
Thanks for the help! i Managed to flash TWRP in EDL mode (black screen). Then I proceeded to flash nougat B9. I was up all night reading about it and searching tutorials how to flash stock from TWRP. I installed Bootstack and System, supersu 2.79 and xposed. First boot did not work but that was actually in the guide so I had to flash system and root again. My data partition is ext4 and everything works good now. I hope it wont make any problems.
The audio mod was "divine 10" or something. I will try the ones you have mentioned.
Thanks for all the help
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Click to collapse
Xposed usually needs a 2 or 3 minute first boot for some reason, just sayin

Bootloop?

So I just got my Nexus 6p today and I've tried rooting this thing but it just kept making me stuck on the google logo. I successfully unlocked the bootloader and installed TWRP but everytime I installed from ZIP SuperSU or Magisk it would keep getting me stuck on the google logo. I've tried this several times because I could still go to bootloader. I've flashed the stock image a couple of times and reinstalled TWRP but I just can't get it to root.
Edit: I have flashed to stock and I'm on 6.0. I haven't tried reinstalling TWRP but the bootloader is unlocked and everything else is stock.
Edit 2: I just flashed TWRP and now I'm stuck on the google logo. Wtf is this??
nemesis101x said:
So I just got my Nexus 6p today and I've tried rooting this thing but it just kept making me stuck on the google logo. I successfully unlocked the bootloader and installed TWRP but everytime I installed from ZIP SuperSU or Magisk it would keep getting me stuck on the google logo. I've tried this several times because I could still go to bootloader. I've flashed the stock image a couple of times and reinstalled TWRP but I just can't get it to root.
Edit: I have flashed to stock and I'm on 6.0. I haven't tried reinstalling TWRP but the bootloader is unlocked and everything else is stock.
Edit 2: I just flashed TWRP and now I'm stuck on the google logo. Wtf is this??
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Click to collapse
Could be because you are on older version of Android. Did you make sure you are on the correct bootloader? Anyways I found with stock you must complete the initial setup then you can go back and root later. I've had success with Magisk 16.0 on nougat and Oreo so don't see why it wouldn't work on marshmallow.
Exodusche said:
Could be because you are on older version of Android. Did you make sure you are on the correct bootloader? Anyways I found with stock you must complete the initial setup then you can go back and root later. I've had success with Magisk 16.0 on nougat and Oreo so don't see why it wouldn't work on marshmallow.
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Click to collapse
What is a 'correct bootloader' anyway? I am on the latest bootloader and flashed latest factory images and still bootlooping, can't even make it to recovery mode (flashed 4-cores TWRP after I flashed stock).
Gamool said:
What is a 'correct bootloader' anyway? I am on the latest bootloader and flashed latest factory images and still bootlooping, can't even make it to recovery mode (flashed 4-cores TWRP after I flashed stock).
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Click to collapse
Ok sorry you said 6.0 in comment that's why I asked about bootloader. Also thought was just the root giving you a hard time not the dreaded bootloop that some 6Ps get.

Factory reset with TWRP, SuperSU, and unlocked bootloader?

Hi all, my phone is still on Nougat with SuperSU (I know, I know) and I want to upgrade to Oreo and also do a clean re-root with Magisk. Can I simply backup what I need, factory reset, take OTA update, and root? Will having TWRP, SuperSU, and the bootloader unlocked have any issues with a factory reset? Thanks.
kram12085 said:
Hi all, my phone is still on Nougat with SuperSU (I know, I know) and I want to upgrade to Oreo and also do a clean re-root with Magisk. Can I simply backup what I need, factory reset, take OTA update, and root? Will having TWRP, SuperSU, and the bootloader unlocked have any issues with a factory reset? Thanks.
Click to expand...
Click to collapse
An unlocked bootloader is no problem for taking OTA, TWRP and SuperSU are definitely.
You've got two ways to upgrade to Oreo:
- Fastboot flash the nougat firmware you're on and apply the OTA updates until you are on Oreo.
- Fastboot flash latest Oreo firmware for your region.
In both cases you will lose your data so back it up before.
After that you have to flash twrp again, decrypt your data partition if you wish to and reroot the phone, I recommend magisk 18.
Thank you, that's very helpful! Literally for no reason other than downloading podcasts my phone rebooted and is now bootlooping, so good timing to get a clean slate going!

Magisk v25 on Stock B20 Oreo A2017U

Hi,
is anyone running latest B20 Oreo rom on an A2017U phone with Magisk v25?
When I patch boot image and flash it via EDL the phone doesn't boot it, I have to restore original boot.img to be able to boot android again.
Also, fastboot is not available in the stock EDL images, any idea how to get fastboot back?
Thanks
Hi,
For first, I flashed some ROMs earlier in my life but it was like 5 years ago. I'm not expert in that field. That being said... I'm running B02 Oreo ROM on A2017G but i had the same problem. I managed somehow to find somewhere (can't remember which site) that "Magisk 16.4 should work because 16.0 version had some problems". So I tried 16.4 and it worked for me. Unfortunately data partition, although it shouldn't after root, stays encrypted (in TWRP).
Also, if You boot to system and open Magisk manager it will show You that update is available. After updating to the latest app version it will say that your version of Magisk is not supported now and You should update it (meaning, flashing latest zip). I didn't try it but assuming that earlier it didn't want to boot with the latest version on "Magisk-v25.1.zip" it won't at this time too.
It's so hard to find any information about this phone this day's... I would love if someone knew how to disable this encryption. I tried I think every solution and nothings seems to work :/
I hope I'm not late and my post will help You

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