ZTE Axon A2017 B17 Nougat 7.1.1 - ZTE Axon 7 Questions & Answers

Hi,
I have tried for weeks now to unlock my bootloader, but to no avail. Most of the zip files posted are for B20 or B13 builds. Unfortunately my system returns an error when trying to do the update both from the SD card and from ADB.
Please help.
Thanks in advance!

where is B17 is avalble?
and you cant unlock the bootloader from stock recovery

Pushed a 94.45mb b17 update. Refused to install on my phone even after reinstalling the stock recovery.

Related

Bootloop after updating to B27

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?

A2017U B03 restore to B20 or B27

I was dumb. I decided to flash the euopean Axon 7 (a2017g) B03 twrp file to my phone and now I've lost TWRP (was able to get root back but cannot recover TWRP). I have tried the EDL method and Fastboot. Nothing sticks. So now I am here begging for help from fellow members. How to get my A2017U back to B20 or B27. My bootloader is officially unlocked if that makes a difference.
Thank you.

Do I have to downgrade B19 to root?

Let me start off by saying I've been a member of this forum a long time and I'm not new to rooting. However, my last 2 phones didn't have root exploits when I bought them (G5 & Motorola z Force). I'm currently in the B19 build and all the steps I see involve downgrading from b25 to B19 to root. Can I unlock bootloader, root and install twrp while on B19?
Thanks in advance! Thanks to all the wonderful techies & gurus who figure these exploits out.
Yes, as of b25 disabled unlocking. With b19 you're okay.
AFAIK the B25 update disabled fastboot, NOT unlocking. Try axon7toolkit, it should flash a bootloader or sth

A2017G Nougat?!

Hi all. I'm currently using tron9's A2017G B09 (running Marshmallow) that I found here.
I really want Nougat but nothing seems to work. My findings
Using A2017G B09 Bootstack & A2017U B32 (Nougat) Stocksystem (Phone didn't boot)
Following this tutorial by thedroidguru (Method 1 didn't work, update wasn't recognized; Method 2 didn't work because it couldn't install zip file from TWRP)
I found these files on the ZTE website (Couldn't install zip file)
These files from this XDA thread (Tried installing B10 Marshmallow to move from B10 to B04 Nougat, couldn't install zip file via TWRP)
I found nothing. I just want Nougat. I'd really prefer the stock version but if there's no choice I'll take any popular ROMs. Anyone know how I can update?
nonamesl said:
Hi all. I'm currently using tron9's A2017G B09 (running Marshmallow) that I found here.
I really want Nougat but nothing seems to work. My findings
Using A2017G B09 Bootstack & A2017U B32 (Nougat) Stocksystem (Phone didn't boot)
Following this tutorial by thedroidguru (Method 1 didn't work, update wasn't recognized; Method 2 didn't work because it couldn't install zip file from TWRP)
I found these files on the ZTE website (Couldn't install zip file)
These files from this XDA thread (Tried installing B10 Marshmallow to move from B10 to B04 Nougat, couldn't install zip file via TWRP)
I found nothing. I just want Nougat. I'd really prefer the stock version but if there's no choice I'll take any popular ROMs. Anyone know how I can update?
Click to expand...
Click to collapse
I have 3 ways for you:
-Put your device on EDL, use MiFlash to install B06 (latest G system). You can find the package made by Turkdevs on the Guides section (latest stocksystems i think)
-Download MiFavor 5.0 from the ROMs, Kernels thread and flash it via TWRP. The one there is v2.0.0B06 but there were problems with v2.0.0B08 and Google stuff it may seem
-Get a stock recovery zip from raystef66's Download Center (you can use B09 or B10 recovery zip) then flash it via TWRP, then reboot and use the Settings-Updates option to flash the official zip.
You'll only retain TWRP on the 2nd one (MiFavor 5.0). And I believe it is FAR better than stock G firmware
DEAR ZTE CUSTOMER,
Pls inform us the exact version of your phone and your IMEI. According to your case, you are suggested to upgrade through SD card

[PLEASE HELP] HW P9 Lite (VNS-L21) Downgraded to MM, unable to get back to Nougat.

So, due to my Pixel's battery life being atrocious I wanted to try LineageOS 14.1 and use my P9 Lite as a daily driver.
I started by downgrading to Marshmallow from Nougat as DC-Unlocker wouldn't work on 7.0 and I needed the bootloader unlock code.
( I used the firmware and tutorial from 4mobiles dot net, looks to be a polish one. )
Once on 6.0 MM I was able to get the code and unlock the bootloader, however, LineageOS and it's TWRP does not seem to work on 6.0 so I needed to upgrade to Nougat again.
Unfortunately, when I try the official update it says there are no updates available and any time I try to use the firmware finder app either the download fails or upon attempting install the phone reports a 'compatibility issue' and won't accept any firmware.
I tried loads of different update.zip files via the recovery update as well as through ADB. Nothing seems to work.
Finally I was able to get TWRP 3.0.2.0 on it, but again, only the version from 4mobiles dot net works. Other versions of TWRP just remove recovery altogether. (I guess they don't work with 6.0)
At this point it's a bit easier to try roms, but still none of 'em seem to work.
-I tried sideloading and manually installing lineageos 14.1 from the sdcard, it fails with ERROR CODE 7
(currently I'm stuck on the 'YOUR PHONE CAN NOT BE TRUSTED/BOOTLOADER UNLOCKED' screen, no splash but I can get into recovery and fastboot)
-Tried flashing boot.img and system.img of various OEM firmwares as well as LineageOS's manually through ADB, same result, bootloops
It seems to me that some other file makes the phone believe that it's incompatible with any of my roms. Maybe the firmware i got for 6.0 is region locked, or perhaps it's the vendor.img that I don't know how to flash?
I know it's a grave mistake but I didn't take a note on what my original version number was. It was the latest 7.0 Nougat EMUI 5.0 update on a UK based unlocked VNS-L21. The 6.0 MM I flashed on it with a rollback update was C900B300.
I tried the proxy method, custom DNS, and manual download on various roms in the Firmware finder app. Even when the download doesn't fail, the system always says the firmware is incompatible when I try to install.
Right now I could put 6.0 MM back on it and make it usable, but I doubt it would be much better than the 7.0 that was on it originally.
Can anyone tell me how I could put the original Nougat firmware back on it? eRecovery doesn't detect any possible updates.
Any help would be appreciated and thanks in advance!
richplays said:
So, due to my Pixel's battery life being atrocious I wanted to try LineageOS 14.1 and use my P9 Lite as a daily driver.
I started by downgrading to Marshmallow from Nougat as DC-Unlocker wouldn't work on 7.0 and I needed the bootloader unlock code.
( I used the firmware and tutorial from 4mobiles dot net, looks to be a polish one. )
Once on 6.0 MM I was able to get the code and unlock the bootloader, however, LineageOS and it's TWRP does not seem to work on 6.0 so I needed to upgrade to Nougat again.
Unfortunately, when I try the official update it says there are no updates available and any time I try to use the firmware finder app either the download fails or upon attempting install the phone reports a 'compatibility issue' and won't accept any firmware.
I tried loads of different update.zip files via the recovery update as well as through ADB. Nothing seems to work.
Finally I was able to get TWRP 3.0.2.0 on it, but again, only the version from 4mobiles dot net works. Other versions of TWRP just remove recovery altogether. (I guess they don't work with 6.0)
At this point it's a bit easier to try roms, but still none of 'em seem to work.
-I tried sideloading and manually installing lineageos 14.1 from the sdcard, it fails with ERROR CODE 7
(currently I'm stuck on the 'YOUR PHONE CAN NOT BE TRUSTED/BOOTLOADER UNLOCKED' screen, no splash but I can get into recovery and fastboot)
-Tried flashing boot.img and system.img of various OEM firmwares as well as LineageOS's manually through ADB, same result, bootloops
It seems to me that some other file makes the phone believe that it's incompatible with any of my roms. Maybe the firmware i got for 6.0 is region locked, or perhaps it's the vendor.img that I don't know how to flash?
I know it's a grave mistake but I didn't take a note on what my original version number was. It was the latest 7.0 Nougat EMUI 5.0 update on a UK based unlocked VNS-L21. The 6.0 MM I flashed on it with a rollback update was C900B300.
I tried the proxy method, custom DNS, and manual download on various roms in the Firmware finder app. Even when the download doesn't fail, the system always says the firmware is incompatible when I try to install.
Right now I could put 6.0 MM back on it and make it usable, but I doubt it would be much better than the 7.0 that was on it originally.
Can anyone tell me how I could put the original Nougat firmware back on it? eRecovery doesn't detect any possible updates.
Any help would be appreciated and thanks in advance!
Click to expand...
Click to collapse
use full update.zip from firmware finder. to upgrade, you can't use latest package. you must use first nougat update.zip.
RyotaGamer said:
use full update.zip from firmware finder. to upgrade, you can't use latest package. you must use first nougat update.zip.
Click to expand...
Click to collapse
I've only used Full-OTAs, no bugfixes. None of them seem to work.
Yesterday I tried manually selecting a different model in Firmware Finder;
VNS-L21C185 instead of the default VNS-L21C432-
and downloaded VNS-L21C185B397 update. It verified fine but I couldn't install it due to my recovery being TWRP and not the stock one. What I think I'll try is flashing the recovery of the original Marshmallow firmware that's currently on the system and seeing if it will install this update. I kinda doubt it will tho.
Any other suggestions?
Is there any way I can install a nougat TWRP without my current working firmware being on nougat?
If not, is there any way I can install a nougat firmware with TWRP 3.0.2.0? In order to flash update.zip / update.app files I need to get the stock recovery back, but I can't seem to be able to do that.
Is there any way I can flash a standard OEM Rom onto it with TWRP?
richplays said:
Is there any way I can install a nougat TWRP without my current working firmware being on nougat?
If not, is there any way I can install a nougat firmware with TWRP 3.0.2.0? In order to flash update.zip / update.app files I need to get the stock recovery back, but I can't seem to be able to do that.
Is there any way I can flash a standard OEM Rom onto it with TWRP?
Click to expand...
Click to collapse
you can't install nougat TWRP in EMUI 4. you can install update.app with original recovery.
extract UPDATE.APP from update.zip
place UPDATE.APP to dload folder in sdcard.
press power button, vol+ and vol-

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