Database Users

i flashed the wrong rom on my VNS-L21(now model no. is generic a-15)

hey
i flashed emui 5 on my VNS-L21
i did a mistake though
i flashed VNS-L31 firmware on my VNS-L21
now the phone model is changed to generic-a15
now i cant flash any roms using dload to this device..
i flashed twrp using fastboot but i cant boot into twrp....the bootloader unlocked screen says 'phone is booting" forever when i try to get into twrp
what do i do
please help
the rom is working fine on my VNS-L21 except for the camera...i need it a lot
please help me
edit:1
i tried to revert back to mm
it still says firmware incompatible
now my bootloader got locked...in the boot i got a msg that data partition is damaged and i need to format it....so i formatted it
now my phone is only booting to erecovery and bootloader
i cant flash twrp or revolution recovery because the bootloader is locked
i cant unlock bootloader now because i cant boot up my phone

Guys help us about the camera. I am in the same exact situation. @BadWolfYe and your product_V3 doesnt fix the camera for me, VNS-L21.
And for the recovery - http://forum.xda-developers.com/hua...ecovery-twrp-3-0-2-android-nougat-03-t3511937 - use adb flash it.

dancress said:
You'll have to go the hard route. You'll find all the required files in the ROM section.
Download any Nougat.zip (329 worked for me, 336 did not). Unzip. You'll get the update.app.
Download the second file with all the missing apps. Do not unzip. Maybe rename to something shorter like data.zip.
Download Revolution Recovery for Nougat. Unzip. You get the recovery.img. RENAME to something like revolution.img.
Open update.app in Huawei Update Extracor. Extract recovery.img, boot.img and system.img to wherever your fastboot.exe is. It's practical to put it all in one directory so you don't have to type long paths.
Now, careful...
Go into Fastboot. If Vol- + Power doesn't work, let it boot into eRecovery, press Vol- and tap Reboot. There you are.
Open a command window in the dir with fastboot.exe and the .img files (right click, Open Command Window)
fastboot flash boot boot.img
.... OK
fastboot flash system system.img
.... sparse 1/5 or something, this takes a bit of time.
fastboot flash revolution.img
.... OK
Now DO NOT REBOOT into System. Hold Vol+ + Power while still in Fastboot. It'll boot into Revolution eventually. Tap Advanced, ADB Sideload. Swipe.
Back in your command window, type:
adb sideload second_file.zip
... working... this'll take a bit. There might be an error message like 'could not mount /data'. Doesn't matter at this point.
When done, type
fastboot flash recovery recovery.img (this is the stock recovery you extracted from update.app)
... OK
Reboot to recovery from Revolution.
Do factory reset. Note: If you don't do this last step, there will be a bootloop.
Reboot. The system should now boot up normally. At least it did for me... good luck.
Click to expand...
Click to collapse
But maybe you installes twrp for mm

Laurisss said:
Guys help us about the camera. I am in the same exact situation. @BadWolfYe and your product_V3 doesnt fix the camera for me, VNS-L21.
And for the recovery - http://forum.xda-developers.com/hua...ecovery-twrp-3-0-2-android-nougat-03-t3511937 - use adb flash it.
Click to expand...
Click to collapse
I did this too. Only way to fix it is to downgrade to MM (instructions are in the N install thread). I then unlocked the bootloader, booted to fastboot, flashed Meticulus recovery. Once you're here, the important thing is to flash the update.zip and appropriate .Zip file for your device. Took me a while to find it but Meticulus has a post in Spanish with all of them for each type of P9 lite - there's one for the VNS-L23 there. Flash the update.zip and then device zip (in that order) and reboot. It'll work.
This phone is harder to flash Roms than others I've had in the past... It's important to do things in the right order.

Here's the link I was referring to: http://www.htcmania.com/showthread.php?t=1265029

ALAN JO K said:
hey
i flashed emui 5 on my VNS-L21
i did a mistake though
i flashed VNS-L31 firmware on my VNS-L21
now the phone model is changed to generic-a15
now i cant flash any roms using dload to this device..
i flashed twrp using fastboot but i cant boot into twrp....the bootloader unlocked screen says 'phone is booting" forever when i try to get into twrp
what do i do
please help
the rom is working fine on my VNS-L21 except for the camera...i need it a lot
please help me
Click to expand...
Click to collapse
Like me today.. I´ve installed Emui 5 on my VNS-L21, but after installation bootloader seems to be locked and TWRP won´t load.. What can I do now? I´ve tried flash some recovery, or MM but with locked bootloader it´s hard Is here somebody who know how to repair it ??

DiXiDeR said:
Like me today.. I´ve installed Emui 5 on my VNS-L21, but after installation bootloader seems to be locked and TWRP won´t load.. What can I do now? I´ve tried flash some recovery, or MM but with locked bootloader it´s hard Is here somebody who know how to repair it ??
Click to expand...
Click to collapse
First thing when you want to do something (TWRP, root, custom ROM etc.) with your phone is: UNLOCK BOOTLOADER!
Without unlocked bootloader is not hard to do, you not even try, because it is impossible...

gtdaniel said:
First thing when you want to do something (TWRP, root, custom ROM etc.) with your phone is: UNLOCK BOOTLOADER!
Without unlocked bootloader is not hard to do, you not even try, because it is impossible...
Click to expand...
Click to collapse
You didn't understand me.. I've unlocked it. Installed TWRP, EMUI 5 and after reboot unlocked bootloader gone.. How is this possible ?

DiXiDeR said:
You didn't understand me.. I've unlocked it. Installed TWRP, EMUI 5 and after reboot unlocked bootloader gone.. How is this possible ?
Click to expand...
Click to collapse
Simply! At any install of stock firmware you loose: unlocked bootloader, twrp and root.

gtdaniel said:
Simply! At any install of stock firmware you loose: unlocked bootloader, twrp and root.
Click to expand...
Click to collapse
Oh okey. So.. Maybe this will be retarded question, but how can I unlock bootloader now, when my phone model is generic_a15? When I'm trying to put it on Huawei website it is wrong..

DiXiDeR said:
Oh okey. So.. Maybe this will be retarded question, but how can I unlock bootloader now, when my phone model is generic_a15? When I'm trying to put it on Huawei website it is wrong..
Click to expand...
Click to collapse
With same procedure that you unlocked before.
You must have the unlock code.

gtdaniel said:
With same procedure that you unlocked before.
You must have the unlock code.
Click to expand...
Click to collapse
Okey, second retarded question.. I didn't save my first code.. is here some way to reach it again ? Or can I somehow use generic_a15 phone model?

If you do not have the initial unlock code you have a big problem...

gtdaniel said:
If you do not have the initial unlock code you are a big problem...
Click to expand...
Click to collapse
Oh god, I'm so retarded, but thank you for your patience

Now, when you dial code for Device ID you will get a differend ID and when you make procedure for another unlock code on Huawei site you get ERROR...

gtdaniel said:
Now, when you dial code for Device ID you will get a differend ID and when you make procedure for another unlock code on Huawei site you get ERROR...
Click to expand...
Click to collapse
Yes..

diorenzo said:
But maybe you installes twrp for mm
Click to expand...
Click to collapse
i tried to revert back to mm
it still says firmware incompatible
now my bootloader got locked...in the boot i got a msg that data partition is damaged and i need to format it....so i formatted it
now my phone is only booting to erecovery and bootloader
i cant flash twrp or revolution recovery because the bootloader is locked
i cant unlock bootloader now because i cant boot up my phone

ALAN JO K said:
i tried to revert back to mm
it still says firmware incompatible
now my bootloader got locked...in the boot i got a msg that data partition is damaged and i need to format it....so i formatted it
now my phone is only booting to erecovery and bootloader
i cant flash twrp or revolution recovery because the bootloader is locked
i cant unlock bootloader now because i cant boot up my phone
Click to expand...
Click to collapse
For unlock bootloader you only need you phone to boot into bootloader...
You say "now my phone is only booting to erecovery and bootloader"
So?

gtdaniel said:
For unlock bootloader you only need you phone to boot into bootloader...
You say "now my phone is only booting to erecovery and bootloader"
So?
Click to expand...
Click to collapse
how do i get the ids required for unlocking bootloader if i cant look it up in settings

ALAN JO K said:
how do i get the ids required for unlocking bootloader if i cant look it up in settings
Click to expand...
Click to collapse
You have to saved anywhere first time you have'it!
That is the first rule!
Once you debranded your phone that Device ID is change,
so even your phone boot ok and you obtain a Device ID is not the same
with the one saved in the Huawei databases...
So, procedure to obtain the bootloader unlock code is ended in error...

Can't unlock bootloader, can't finish OS setup

So I upgraded to Nougat on my P9 Lite, unlocked boot loader, used twrp, flashed roms and everything went smooth. Saw a more up-to-date version with no bugs, so I had to downgrade to MM first.
I followed a guide, but I messed up somewhere and ended up having my bootloader locked, and I can't access the OS to enable developer options and oem unlock from settings. The reason why I can't access the OS is that I am stuck in the setup. I am stuck at the part where I have to sign in to my google account. It doesn't show a keyboard, only a microphone, and I can't use that for my password (it won't let me).
Any ideas?
TL;DR messed up during downgrading from Nougat to MM, now TWLR is gone, bootloader is locked and my main issue is that when I get to the google account sign in part during OS setup, there is no keyboard (I can only use dictation) so I can't sign in... So I'm stuck
Also, can I unlock bootloader without access to OS, without being able to navigate to settings, enable developer options and then oem unlock?

1. Stuck in OS setup? Signing in to Google? Hey, it's not obligatory, can't you just skip it?
2. Flashing ROMS locked your bootloader, it's normal, but I'm sure it didn't change the "oem unlock" setting you had surely enabled before. Go to fastboot mode and check Bootloader and FRP status on the bottom of the screen. If FRP is unlocked, you will be able to unlock bootloader again.
3. If you have your TWRP gone (flashed by stock ROM), flash the recovery partition manually - fastboot flash recovery TWRP.img (download from Meticulus Project site).

Jagiel88 said:
1. Stuck in OS setup? Signing in to Google? Hey, it's not obligatory, can't you just skip it?
2. Flashing ROMS locked your bootloader, it's normal, but I'm sure it didn't change the "oem unlock" setting you had surely enabled before. Go to fastboot mode and check Bootloader and FRP status on the bottom of the screen. If FRP is unlocked, you will be able to unlock bootloader again.
3. If you have your TWRP gone (flashed by stock ROM), flash the recovery partition manually - fastboot flash recovery TWRP.img (download from Meticulus Project site).
Click to expand...
Click to collapse
It is obligatory, I couldn't skip it. I tried to use other methods of signing in, but then it asked me to reset password at the end.
Both Phone and FRP are locked
I think I have missed this, but I can't do it via fastboot because I keep getting "Command not allowed" whenever I try to unlock bootloader or do anything via fast boot.
Also, thank you so much for your time and input. It is much appreciated.

That's weird, I flashed my phone several times with different ROMS (not Nougat) and this setting (oem unlock / FRP unlocked) stayed enabled. Don't know where it sits then and how to change it without getting inside OS. But - what about TWRP? Oh right, you won't be able to flash it without unlocked bootloader... Oh, crap. I would try SRK Tool for Huawei to play with bootloader, it uses fastboot so shouldn't help, but maybe, just maybe? Maybe try flashing whole ROMs through dload folder on SD? Stock 120, 161, Nougat, I would try these. I hope there is some way to unlock FRP, probably it's possible in DC-unlocker (it's a paid software).

Jagiel88 said:
That's weird, I flashed my phone several times with different ROMS (not Nougat) and this setting (oem unlock / FRP unlocked) stayed enabled. Don't know where it sits then and how to change it without getting inside OS. But - what about TWRP? Oh right, you won't be able to flash it without unlocked bootloader... Oh, crap. I would try SRK Tool for Huawei to play with bootloader, it uses fastboot so shouldn't help, but maybe, just maybe? Maybe try flashing whole ROMs through dload folder on SD? Stock 120, 161, Nougat, I would try these. I hope there is some way to unlock FRP, probably it's possible in DC-unlocker (it's a paid software).
Click to expand...
Click to collapse
Yes, it's very weird. I haven't done the process a lot. But I've flashed a couple of phones I had before, went smooth. Nothing major like this happened before.
I will consider the SRK Tool and I did not know about the DC-Unlocker tool, thank you for telling me about it.
Flashing whole roms through dload folder only works with Nougat for some reason, and I keep getting stuck in the signing in problem because of no keyboard, someone told me that's incomplete software, I'm hoping that's the case, any ideas where can I get it from?
Again thank you Jagiel88 for your time and advice xD

No problem, unfortunately I haven't tried Nougat yet, so search for help on down/upgrade Nougat beta <-> Marshmallow threads .

youssefSamir said:
Yes, it's very weird. I haven't done the process a lot. But I've flashed a couple of phones I had before, went smooth. Nothing major like this happened before.
I will consider the SRK Tool and I did not know about the DC-Unlocker tool, thank you for telling me about it.
Flashing whole roms through dload folder only works with Nougat for some reason, and I keep getting stuck in the signing in problem because of no keyboard, someone told me that's incomplete software, I'm hoping that's the case, any ideas where can I get it from?
Again thank you Jagiel88 for your time and advice xD
Click to expand...
Click to collapse
Hi, have you found how to solve this? I can't access recovery because I messed up, cant flash recovery because bootloader locked. Cant unlock bootloader because says command not allowed... I did 3 times so the code is working... Any clue?

islandman75 said:
Hi, have you found how to solve this? I can't access recovery because I messed up, cant flash recovery because bootloader locked. Cant unlock bootloader because says command not allowed... I did 3 times so the code is working... Any clue?
Click to expand...
Click to collapse
There is 1 thing to unlock in settings . U have OEM lock

youssefSamir said:
Yes, it's very weird. I haven't done the process a lot. But I've flashed a couple of phones I had before, went smooth. Nothing major like this happened before.
I will consider the SRK Tool and I did not know about the DC-Unlocker tool, thank you for telling me about it.
Flashing whole roms through dload folder only works with Nougat for some reason, and I keep getting stuck in the signing in problem because of no keyboard, someone told me that's incomplete software, I'm hoping that's the case, any ideas where can I get it from?
Again thank you Jagiel88 for your time and advice xD
Click to expand...
Click to collapse
Hi, have you found how to solve this? I can't access recovery because I messed up, cant flash recovery because bootloader locked. Cant unlock bootloader because says command not allowed... I did 3 times so the code is working... Any clue?
---------- Post added at 04:19 PM ---------- Previous post was at 04:16 PM ----------
ScaleneVirus288 said:
There is 1 thing to unlock in settings . U have OEM lock
Click to expand...
Click to collapse
Can't access to any OS. I definetly know i had OEM unlocked, then after unlocking via fastboot, I wasn't able anymore to access the system.

islandman75 said:
Hi, have you found how to solve this? I can't access recovery because I messed up, cant flash recovery because bootloader locked. Cant unlock bootloader because says command not allowed... I did 3 times so the code is working... Any clue?
---------- Post added at 04:19 PM ---------- Previous post was at 04:16 PM ----------
Can't access to any OS. I definetly know i had OEM unlocked, then after unlocking via fastboot, I wasn't able anymore to access the system.
Click to expand...
Click to collapse
Unlock bootloader, after that you able to flash rom.
You use this command?
fastboot oem unlock YOUR_OEM_CODE
If you tip:
fastboot devices
What's you see?

P9 Lite Bricked. Help me!!!

Hello,
I was always a Samsung fanboy, but than I decided to buy the P9 lite (VNS-L21 single sim)
I wanted to flash the android 7 update for my phone, but I was such a noob in Huawei, that I didn't understand a word. But i tried to do what the instructions said. Now my phone is bricked. I can go to recovery, erecovery (which can't download anyithing) and download mode. I heard of this fastboot stuff as well, but I don't know how to do this. I tried to flash as many roms as I could with dload and it didn't work, after 5%, it said it failed... Now I don't know what to do. I think somebody (expert) should make a clear tutorial for noobs. Oh and I almost forgot that i don't have root, custom recovery, and things like that. I just bought the phone, I didn't want to make big changes, just new android. Is it possible that after this Huawei would fix my phone, if I couldn't? Or warranty is void? And sadly I don't know more of my phone because I'm not ina rom, and the phone and papers don't say more.
If you could help me, I would appreciate it:
Raul

Turn off your phone, connect to the pc while holding the volume down button, you will end up in fastboot mode.
I assume you have ADB and drivers installed (if not, install ADB and device drivers).
Optional: unlock your bootloader if it's locked.
Download the latest offical rom zip for your phone version (the marshmallow one), extract the update.app.
Use Huawei extractor to ectract the following files (google is your friend in this one, but its not difficult):
boot.img
recovery.img
cust.img
system.img
After you've done this, connect your phone to the PC in fastboot mode .
Open a command promt from the folder where the extracted files are (shift+right click, Open Command window here), enter the following commands
fastboot devices (you will see the list of attached devices with a lot of random number + fastboot)
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash cust cust.img
fastboot flash system system.img
fastboot reboot
After all this, you should be good to go, just be sure you are using the correct rom for you version.
Or you can just serach on the forum and find this.
https://forum.xda-developers.com/huawei-p9lite/help/unbricking-vns-l21-vns-l31-tutorial-t3583400
(Sorry for my english.)

Fastboot says that it has failed command not alllowed, after I want to installl the files. And I couldn't unlock bootloader without phones information...

rr999999 said:
I would happily unlock my bootloader, but I don't know anyithing about my phone (except model...) without the os...
Click to expand...
Click to collapse
Post here IMEI and SN from the box of phone and i can try get your bootloader unlock code...

If I would unlock it, would fastboot work? Because fastboot pc app recognizes my phone, but my phone says in fastboot mode, that I should connect itself to pc and open hisuite. WTF?

rr999999 said:
If I would unlock it, would fastboot work? Because fastboot pc app recognizes my phone, but my phone says in fastboot mode, that I should connect itself to pc and open hisuite. WTF?
Click to expand...
Click to collapse
Until you have bootloader unlock you can not run any fastboot flash command...

rr999999 said:
If I would unlock it, would fastboot work? Because fastboot pc app recognizes my phone, but my phone says in fastboot mode, that I should connect itself to pc and open hisuite. WTF?
Click to expand...
Click to collapse
Heyho,
normally yes, after bootloader unlock u are able to flash via fastboot. But...
I tried to flash as many roms as I could with dload and it didn't work, after 5%, it said it failed...
Click to expand...
Click to collapse
What is the error? - Have u disconnected the device from the PC during the update?
If not, try to update again and just disconnect the device from any USB connection...
Regards,
Sebastian

k1ll3r8e said:
Heyho,
normally yes, after bootloader unlock u are able to flash via fastboot. But...
What is the error? - Have u disconnected the device from the PC during the update?
If not, try to update again and just disconnect the device from any USB connection...
Regards,
Sebastian
Click to expand...
Click to collapse
Hello. I disconnected it from everything (for example USB)When I tried to install it said something like incompatibility version, but it couldn't be because I tried many roms for my phone. And I tried some dual sim roms as well because, I thought that it might work... But then I will do that unlock if it will do good. Thanks for the help Without bootloader I can't flash from dload as well?

rr999999 said:
Hello. I disconnected it from everything (for example USB)When I tried to install it said something like incompatibility version, but it couldn't be because I tried many roms for my phone. And I tried some dual sim roms as well because, I thought that it might work... But then I will do that unlock if it will do good. Thanks for the help Without bootloader I can't flash from dload as well?
Click to expand...
Click to collapse
Heyho,
the dload method works always without unlock bootloader. But, u can't flash for example an B161 over an B3xx (what nougat is) if the update u installed modified already the oeminfo u are not able to flash any rom below B3xx (nougat) via dload.
-
In that case u might use the official rollback package (never tested it myself) or, u unlock ur bootloader, flash a TWRP recovery matching to ur current FW. Flash from there a oeminfo + custom.bin (lower than B3xx) and flash the FW matching to the new oeminfo via dload and stock recovery.
Regards,
Sebastian

If you have custom recovery, wipe everything. Data, system, boot. extract update app (which is your stock rom) with huawei update extractor. go to custom recovery, flash stock boot IMG and stock recovery IMG. Power off, use three button dload method, reboot, when booting press vol up for three second, now you are in e-recovery. Press shutdown. Press and hold power and vol up for stock recovery. Do factory reset. If need do the factory reset 2/3 times. Now you are with locked bootloader.
Sent from my NEM-L21 using Tapatalk[/QUOTE]
Sent from my NEM-L21 using Tapatalk

How to Stock FW and Relock Bootloader? OP5

Hi all,
I've wanted to go back to Stock OS but when i type "fastboot oem lock" it says "FAILED <remote: Flashing Lock is not allowed."
Everything boots normally to OS 4.5.2. In DEV options the Unlock Bootloader is greyed out and says bootloader is already unlocked.
What can i do?
Cheers

These instructions did work for me with the OnePlus 3/3T. They should also work for the OnePlus5, just make sure that you download the OnePlus5 version of the software and recovery.
https://forums.oneplus.net/threads/...-3-3t-and-go-back-completely-to-stock.456232/
Use this link for the stock recovery: https://forum.xda-developers.com/showpost.php?p=72748921&postcount=5

reayard said:
These instructions did work for me with the OnePlus 3/3T. They should also work for the OnePlus5, just make sure that you download the OnePlus5 version of the software and recovery.
https://forums.oneplus.net/threads/...-3-3t-and-go-back-completely-to-stock.456232/
Use this link for the stock recovery: https://forum.xda-developers.com/showpost.php?p=72748921&postcount=5
Click to expand...
Click to collapse
Hi i tried but does the same when i get to fastboot oem lock (it says Flashing Lock is not allowed).

r1card0amr said:
Hi i tried but does the same when i get to fastboot oem lock (it says Flashing Lock is not allowed).
Click to expand...
Click to collapse
Thanks I asked the same question earlier glad u tried it..I want to make sure we can relock it before I get the phone. Did u enable oem unlocking in the developer options before doing a fastboot oem lock? Also, make sure you are on stock everything including recovery..

mohan_kr said:
Thanks I asked the same question earlier glad u tried it..I want to make sure we can relock it before I get the phone. Did u enable oem unlocking in the developer options before doing a fastboot oem lock? Also, make sure you are on stock everything including recovery..
Click to expand...
Click to collapse
Hello. I first thing I do always is to install drivers. I start by connecting the phone to the laptop in charge mode, then in transfer files mode, MTP or camera. In this way he will recognise all the drivers your laptop needs.
Also I enter in fastboot mode and recovery so the laptop can recognise the drivers and always reboot laptop and phone just to double check.
What I did was: go to Developer Options and enabled Unlock Bootloader and USB Debugging.
Then I accepted the laptop request on my phone and all drives were OK.
I run CMD and typed fastboot devices to see if it recognises my phone and it displayed a serial number. So I proceed next to type fastboot oem unlock and the process went OK and on my phone it asked Yes or No to unlock and I choose yes.
Then I flash a twrp image by typing on CMD: fastboot flash recovery recovery.img (my twrp I'm had other name so I rename it. You need to enable "Show file extensions" in Windows so you can see what the extension is).
I then type fastboot boot recovery.img and the phone entered in Recovery Mode in this case TWRP.
My phone was always connected to the laptop and he open the internal storage window so I drag the supersu inside.
Then on TWRP I wiped dalvik and cache and I went to Install and installed the SupeSU on my internal memory root.
The phone then rebooted and ready to go.
But then I went to developer options and the Unlock bootloader was greyed out. I unroot my phone and flashed a stock recovery for OP5 and the stock image 4.5.2 and when I type fastboot oem lock it always says it can't be flashed.
I need to stock it since I'm giving to a family member and they don't understand much about phones and If there's a problem the warranty doesn't cover.
Just installed supersu to try an app. I never install 3rd party roms.

r1card0amr said:
I need to stock it since I'm giving to a family member and they don't understand much about phones and If there's a problem the warranty doesn't cover.
Click to expand...
Click to collapse
the warranty is not voided with unlocked bootloader..
https://oneplus.net/hk/support/answer/will-rooting-or-unlocking-the-bootloader-void-my-warranty

I found now that if i take pictures or screenshots the Album Folder is empty. I think my phone is bricked. Hence i can't lock the bootloader.

r1card0amr said:
I found now that if i take pictures or screenshots the Album Folder is empty. I think my phone is bricked. Hence i can't lock the bootloader.
Click to expand...
Click to collapse
if your phones boots its not bricked... My guess is that you data is corrupted, i would wipe everything including userdata en reflashing the stock with recovery.

Hogyoku said:
if your phones boots its not bricked... My guess is that you data is corrupted, i would wipe everything including userdata en reflashing the stock with recovery.
Click to expand...
Click to collapse
Hi right before your comment i managed lol.
I re-flash the stock recovery and in recovery i reset and wipe everything. then i install the OS4.5.3 by ADB Sideload and it's working now.
Just wanted to get rid of the inital warning that my bootloader is unlocked. I want to lock again.

I rooted my device with Magisk, and now I want to restore it to factory state.
I flashed stock recovery and OOS several times, wiped everything but fastboot oem lock failed all times (FAILED (remote: Flashing Lock is not allowed)).
Can you help me?
What should I do to relock bootloader?

here is your solution
r1card0amr said:
Hi right before your comment i managed lol.
I re-flash the stock recovery and in recovery i reset and wipe everything. then i install the OS4.5.3 by ADB Sideload and it's working now.
Just wanted to get rid of the inital warning that my bootloader is unlocked. I want to lock again.
Click to expand...
Click to collapse
here in this video u can see in detail how to lock bootloader. hope this help you
https://www.youtube.com/watch?v=CQYCSdDUdAU

HOW TO RELOCK..
Install TWRP and Magisk if you don't have them yet.
Magisk should allow you to slide "OEM unlocking" to "enabled"
Reboot to fastboot
Flash stock recovery via fastboot.
Run locking via fastboot flashing lock
Allow it to reboot and upon start up it will say device corrupted (THIS IS NORMAL)
Boot to recovery via the warning start screen.
Once in recovery, sideload latest FW.
Profit.

I usually do it this way (successfully):
Wipe everything but OTG in TWRP
Format data
Reboot to TWRP
Flash the full stock OOS zip
Reboot to fastboot
Flash stock recovery
Lock bootloader with the fastboot lock command

Has anyone made any progress with this? I too am having the issue as described and have tried the solution by Ricyksydhu, along with solutions from various other places around the net.

Corrupted recovery, no o/s, what to do now?

I have a Axon 7 A2017U, bootloader unlocked. My recovery is corrupted after attempting to flash a older version of TWRP in recovery. I can no longer reboot into TWRP via recovery, it hangs at the ZTE powered by screen. I can't boot into the o/s, it too was corrupted while attempting to restore to stock using the DrakenFX's guide.
Booting into fastboot is a no go either, it just hangs at bootloader screen.
Any suggestions on where to go from here or how to fix the corrupted recovery?

You need to go into EDL mode and use MiFlash and flash a back to stock package. You can find a package here: https://androidfilehost.com/?w=files&flid=160532

Hello maybe i have same problem here. I have A2017G and maybe i have only woked unlocked bootloader. I dont think my EDL is working becouse i cant connect with ADB. Dont have any acces to recovery... i messed up step by step remember.
1. downloaded toolkit and woked fine - 2 installed drivers and working fine with EDL. 3 unlocked with no problems , 4 flashed TWRP with no problems and then i wanted to install lineage os. Downloaded last version lineage , and google apps and one file "A2017G_N_Modem.zip" and put all 3 files on my SD card. I wipe everything and then first installed modem file OK, but on second try with Lineage OS i have any errors and i just cant continue. After this i wanted to go back to original OS and i just locked my bootloader with axon toolkit and after restart i have acces only to Unlocked Bootloader. tryed everithing with axon7toolkit but nothing working. If i try to EDL mode when press volumeUP+volumeDOWN+power my phone have black screen and i thing is powered OFF.
OMFG i just typed "fastboot oem unlock" 5-6 time when i started phone to my bootloaders and now it unlocked and have acces to my TWRP.

Teet1 said:
You need to go into EDL mode and use MiFlash and flash a back to stock package. You can find a package here: https://androidfilehost.com/?w=files&flid=160532
Click to expand...
Click to collapse
Thanks, I flashed it with A2017U_B19-NOUGAT_FULL_EDL and was able to flashed twrp recovery. I was hoping the o/s would be fixed too but I get this error message as soon as o/s load "settings keeps stopping, close app". It appears it's a bad or incorrect stock file. I had to format data in TWRP recovery as the drive was encrypted. So now i'm back at square one.
Bad o/s but working recovery, so I attempted to flash these files to get back to stock but was unsuccessful. It would flash halfway and then just restarts and hung at the bootloader unlock screen.
A2017UV1.0.0B29_RollBackModded.zip
A2017UV1.1.0B32_bootstack_by_DrakenFX.zip
A2017UV1.1.0B32_StockSystem_by_DrakenFX.zip
Am I on the right track? Or should I be flashing with a different os variant?

freeb0rn said:
Hello maybe i have same problem here. I have A2017G and maybe i have only woked unlocked bootloader. I dont think my EDL is working becouse i cant connect with ADB. Dont have any acces to recovery... i messed up step by step remember.
1. downloaded toolkit and woked fine - 2 installed drivers and working fine with EDL. 3 unlocked with no problems , 4 flashed TWRP with no problems and then i wanted to install lineage os. Downloaded last version lineage , and google apps and one file "A2017G_N_Modem.zip" and put all 3 files on my SD card. I wipe everything and then first installed modem file OK, but on second try with Lineage OS i have any errors and i just cant continue. After this i wanted to go back to original OS and i just locked my bootloader with axon toolkit and after restart i have acces only to Unlocked Bootloader. tryed everithing with axon7toolkit but nothing working. If i try to EDL mode when press volumeUP+volumeDOWN+power my phone have black screen and i thing is powered OFF.
OMFG i just typed "fastboot oem unlock" 5-6 time when i started phone to my bootloaders and now it unlocked and have acces to my TWRP.
Click to expand...
Click to collapse
So you didn't read all of the hurdles and warnings about locking the bootloader with non-stock firmware?
Plus you also didn't find out about the Universal Bootloader? Did you even read the installation steps???
You had an error 7, which is that you forgot to install the Universal Bootloader. Do so this time.
EDL has nothing to do with ADB. You can access it with the phone completely off... (volume up and down, and insert usb)