Bootloader locks itself, can't restore via fastboot - P8lite Q&A, Help & Troubleshooting

Hi,
recently my friend asked me wether I can look at her P8 Lite which wasn't working after beeing left unused for some time. Basically when she got a new phone this P8 was left in box for a few months and after turning it back on the screen included in attachment appeared. https://imgur.com/a/WcvNByN I'm not new when it comes to unlocking bootloaders and all that stuff as I was doing it many times on another devices so I tought it will be easy job. Well, was I wrong... What I tried so far to recover this phone:
1) I obtained all necesary data to get the bootloader unlock code from Huawei. When I want to unlock the bootloader it works but after I reboot the device it goes back to "Locked" state.
2) It does not boot to recovery with buttons combination.
3) It does boot to fastboot but as I said bootloader locks itself down after reboot.
4) I tried to place UPDATE.APP from various firmweares on SD card and update it that way, it takes extremly long but with this metod it boots to some kind of MIUI recovery in which I have 3 options: wipe cache, wipe data/factory reset, rebboot system. Depending on firmweare it allows me to wpie cache or/and wipe data but reboot system always fails taking me back to this rescue mode screen.
5) Finally I tried to flash stock rom by extracting files from UPDATE.APP via fastboot. It flashes everything except recovery and boot which gives me fastboot error: "FAILED (remote: flash write prim vrl failure)". Interestingly I can flash TWRP recovery without error but when i try to access it whit buttons combination it fails and goes to rescue mode.
Device was stock and unrooted before this. I'm kind of out of ideas, I searched a lot of topics without any conlusion on this, if anyone could help me I wolud really appreciate this. However I think there is no hope for this phone maybe someone here would be able to help.

DoggoGuy said:
Oh no... You should contact Huawei and don't tell them that you tried to unlock the bootloader. Your phone may have a thing named "Huawei eRecovery". Launch it, it will download and flash stock ROM.
Click to expand...
Click to collapse
That option works only in China . I guess

Robx34 said:
Hi,
recently my friend asked me wether I can look at her P8 Lite which wasn't working after beeing left unused for some time. Basically when she got a new phone this P8 was left in box for a few months and after turning it back on the screen included in attachment appeared. https://imgur.com/a/WcvNByN I'm not new when it comes to unlocking bootloaders and all that stuff as I was doing it many times on another devices so I tought it will be easy job. Well, was I wrong... What I tried so far to recover this phone:
1) I obtained all necesary data to get the bootloader unlock code from Huawei. When I want to unlock the bootloader it works but after I reboot the device it goes back to "Locked" state.
2) It does not boot to recovery with buttons combination.
3) It does boot to fastboot but as I said bootloader locks itself down after reboot.
4) I tried to place UPDATE.APP from various firmweares on SD card and update it that way, it takes extremly long but with this metod it boots to some kind of MIUI recovery in which I have 3 options: wipe cache, wipe data/factory reset, rebboot system. Depending on firmweare it allows me to wpie cache or/and wipe data but reboot system always fails taking me back to this rescue mode screen.
5) Finally I tried to flash stock rom by extracting files from UPDATE.APP via fastboot. It flashes everything except recovery and boot which gives me fastboot error: "FAILED (remote: flash write prim vrl failure)". Interestingly I can flash TWRP recovery without error but when i try to access it whit buttons combination it fails and goes to rescue mode.
Device was stock and unrooted before this. I'm kind of out of ideas, I searched a lot of topics without any conlusion on this, if anyone could help me I wolud really appreciate this. However I think there is no hope for this phone maybe someone here would be able to help.
Click to expand...
Click to collapse
I had the same error on my Huawei P8 Lite 2017 but I broke it myself.
The only way I was able to fix it by not taking it to a store was to use DC Phoenix,but it costs 20 euros for a 3 day license.
It was worth it though,since it did first of all lock the bootloader again,and it bootlooped at first but then I went to eRecovery and it installed the latest update and booted up.

Related

No Reboot After TWRP Flash

Hello, i had a lot of troubles with battery drains recently, by curiosity i wanted to restore my stock backup.
So i did and the phone was stuck during rom boot.
So i wanted to go back to TWRP to fix things but instead it went back to stock recovery.
Okay, so i wanted to flash TWRP again but after flashing the recovery.img,
nothing happens when i enter fastboot reboot
I forced shutdown and re tried many times with other twrp files, always the same issue i cannot reboot with the flashed recovery ! ! !
please HELP :angel:
To boot to recovery, shut down the phone, press volume up + power button, when the phone vibrate release the buttons and it will boot to recovery.
The command "fastboot reboot" will just reboot normally the phone.
sorry but my problem is that i cannot reboot in twrp anymore, it always reboot on STOCK recovery !
dunno what to do i got to meet foreign customers tomorrow without my phone i dunno how i'll do, so unlucky it happened to me today
i even tried flashing on another computer, and trying to restore with stock recovery or huawei app but none are working.
to make it clear, i can just fastboot.
so what should i flash to restore/unbrick my phone ? don't care if i lose data, just need to call tomorrow !
edit: some folks say to put update.app in load folder on sd card then boot with the three buttons but which update.app file should i copy ? i got a VNS-L31 should the SD card be in FAT32 ?
Are you sure you flashed TWRP? Try to download it again and flash it from fastboot mode.
yes sure i did it like 20 times this afternoon, i'm trying to fix it for 5 hours lol
in fact i just was able to boot the restore .app while booting with the three buttons, it's installing updates, hope it will fix all the partitions/recovery/boot/system... and all those necessary stuffs
edit: finally huawei animated boot logo is showing UP !
On which firmware are you and which TWRP did you tried?
Potato997 said:
On which firmware are you and which TWRP did you tried?
Click to expand...
Click to collapse
i was using meticulous TWRP v3 and some of his builds for several months and i had trouble with those roms.
so i restored my stock backup and everything was not working anymore, each i tried flashing it always went back on stock recovery a every reboot, impossible to flash twrp anymore...
looks like the phone is stuck in a boot loop lol pfffft
edit:
FYI what i just tried is restoring this image http://consumer.huawei.com/lk/support/products/downloads/huawei-p9-lite-lk.htm (the first one ASIA) but the phone is still booting looks like a fail, could it be incompatible ?
I see.
If you managed to restore with the update.app and the 3 buttons, everything should be fine. It will take some time to boot up, so just wait for a while. Also the bootloader probably re-locked so you will need to unlock it again.
Potato997 said:
I see.
If you managed to restore with the update.app and the 3 buttons, everything should be fine. It will take some time to boot up, so just wait for a while. Also the bootloader probably re-locked so you will need to unlock it again.
Click to expand...
Click to collapse
it can relock ? i will check !
if it does not work should i fast boot flash system.img, recovery.img, cust.img, cache.img and boot.img ?
I think the best thing to do should be a factory reset from recovery, stock is fine, then reboot and wait for 15-20 minutes. If the update.app succefully installed there should be no problem
Potato997 said:
I think the best thing to do should be a factory reset from recovery, stock is fine, then reboot and wait for 15-20 minutes. If the update.app succefully installed there should be no problem
Click to expand...
Click to collapse
i dont have options in the stock recovery, cannot wipe or reset ... ?
edit: 15-20 minutes ? lol i just waited like 8... i re tried the whole process and will wait 20 minutes
If you don't have to option to factory reset then you must be on eRecovery
Potato997 said:
If you don't have to option to factory reset then you must be on eRecovery
Click to expand...
Click to collapse
yes it was
i unlocked the phone again and dunno why it did a factory reset after reboot maybe it will finally launch.
i even got the boot sound this time
screen is dimming and led is glowing yeeeeeees it boots
i'm so happy thx for your time and patience
You're welcome

XT1575 Reset Loop

After messing up a rom flash somehow (phone was stuck on a gray screen after logo), I used the stock recovery factory reset function, but after doing so my phone is stuck in an 'erase loop'. The phone alternates between the "Erasing..." screen (with the little droid) and the "Bootloader Unlocked" screen.
I can enter the main menu for recovery mode, but if I try to go into the actual recovery mode (where you can wipe and install from sd/adb) the loop starts up again. I haven't seen this issue mentioned many other places, but the one forum I did find (for a different phone) just said to wait it out (20+ hours).
I was wondering if anyone else had ever encountered this, or if anyone had any suggestions for me.
TCZaro said:
After messing up a rom flash somehow (phone was stuck on a gray screen after logo), I used the stock recovery factory reset function, but after doing so my phone is stuck in an 'erase loop'. The phone alternates between the "Erasing..." screen (with the little droid) and the "Bootloader Unlocked" screen.
I can enter the main menu for recovery mode, but if I try to go into the actual recovery mode (where you can wipe and install from sd/adb) the loop starts up again. I haven't seen this issue mentioned many other places, but the one forum I did find (for a different phone) just said to wait it out (20+ hours).
I was wondering if anyone else had ever encountered this, or if anyone had any suggestions for me.
Click to expand...
Click to collapse
Try flashing TWRP recovery image using fastboot. I presume you have bootloader unlock otherwise you wouldn't ended up in this mess in first place.
First reboot your phone into the bootloader (POWER+VOL-) from here you can connect your phone to PC and issue fastboot commands.
Code:
fastboot flash recovery /path/to/TWRP.img
After that don't reboot the phone , just select from the already present bootloader the Recovery option... And from there try to factory reset !
If that doesn't work, and the phone doesn't boot (bootloops), you might have the /system partition messed up. At this stage get your hand on the latest Stock Firmware for your phone and flash all the system chunks (no data will be lost, but might need to wipe cache after if you get too many Force Closed)
That is for sure if you want to have stock, you could also try and flash using TWRP a custom ROM, that by itself will restore your system partition ( wipe system before flashing to be sure, by going into wipe -> Advanced -> tick System and the two Cache options and Wipe)
Hope I was clear, ask if you need more step-through details!
Thank you very much, flashing TWRP worked!

Full bricked my P9 Lite

Hello XDA'ers,
the Story in short if that's anyway possible:
I'm using a HUAWEI P9 Lite VNS-L31 (3GB RAM, Single-Sim, Austrian Stock ROM)
Long time ago after i've got in use with my Phone i flashed the European (Unbranded) VNS-L31C432B161.
Everything went fine and it was really stable, fast and what not.
But then i was just getting bored and was looking for other ROM's and found the "EliteROM V5".
Long talk short, i've flashed the modified TWRP (to Backup/Restore/Wipe Vendor, Product and Version paritions) and made a FULL TWRP Backup with every Partition (Boot,Data,Internal Storage,System,Vendor,Product and Version) and installed EliteROM v5 as described in their Guide and it was a full success.
But then i realized that there was some Bug's which got me really mad (like no Spotify Lockscreen Notifications).
So i've decided to go to TWRP and made a FULL WIPE of everything (Boot,Data,Internal Storage,System,Vendor,Product and Version) , formatted Data to ext4 (which was my original FileSystem before EliteROM) and used my Backup to restore every partiton, TWRP was showing that everything went fine.
From there everything went wrong, i've rebooted and it was still showing that the Bootloader was unlocked and booted with the default animated Android Logo (like the ones you see on Emulators).
Of course it had a Bootloop, i've wait about 30 minutes and the animated Android Logo was still present.
I've tried the Restore method so many times, i've also tried just a few partitions (like Vendor,Product,Version and System) but none of them was a success.
However, i've tried to flash the Stock ROM with the dload Method which didn't work (i did get a message something like the Installation Package isn't compatible with my current System).
I've tried to use fastboot to flash my stock rom manually (with fastboot flash boot/cust/system/recovery) which wasn't also a success but once i entered TWRP (after flashing TWRP back with fastboot) i've noticed that the console of TWRP was displaying "failed to mount /vendor (invalid argument), failed to mount /product (invalid argument).
After this long painful Hours i've decided to flash oeminfo from the original VNS-L31 for Single Sim over TWRP which was a success but after this my Bootloader got locked.
I've than Unlocked the bootloader once again but it was still the same. (invalid /vendor and /product).
Then i tried that one thing which i think got my Phoen bricked now, i've flashed the stock boot,cust,system via fastboot and tried to lock my Bootloader with fastboot oem relock XXX which ws a success.
Now after reboot i can't enter Recovery nor Fastboot, i've just the HUAWEI Logo with the powered by android symbol.
That's it.
As you can see it the Problem here was the failure of Restoring partitions.
So my Question now: Is it still possible to "Unbrick" my Phone or not?
Thanks for reading and maybe sharing my expierence with Backups and Restores and for every reply which may help.
best regards,
MarkusP87
Hi,
Follow steps HERE
Hello,
thanks for the link but as stated above i can't access Recovery nor Fastboot.
No matter which Buttons i press on Power i'm getting always HUAWEI Logo with "powered by android".
No USB Connection, i can just wait for the Battery to get low so that the Phone will turn off by itself.
best regards,
MarkusP87
Plug your phone on pc and just after the warning screen tip "fastboot reboot bootloader" (or juste before view a "charging screen" if warning screen don't appear).
You able to view bootloader screen now?
Hello,
no luck.
I just recognized that if my Battery is completely discharged it won't boot up the Phone unless i Press Vol Down Button (it will instantly Boot with Vol down) but still no PC nor fastboot connection.
In Attachment yo can see what i get when trying to boot up with VOL Down or VOL UP or VOL UP + DOWN + POWER.
Thanks for trying.
best regards,
MarkusP87
I've opened my Phone and removed the Battery and could boot into Bootloader , unlocked it and flashed TWRP.
Flashed Boot,Recovery,Recovery2 and System via Fastboot from VNS-L31C432B161 Stock Firmware without success.
Phone hangs still at "Your device is booting now..."
Also eRecovery (VOL UP + Down and Power) doesn't work.
And Console of TWRP shows:
Failed to mount /vendor (invalid argument)
Failed to mount /product (invalid argument)
Wiping or Change Filesystem of them don't work.
What else could i try to get my Phone working again?
I just want a Stock Firmware on it.
Thanks in advance!
best regards,
MarkusP87
Try this flash twrp wipe everything except sd maybe even format data and make sure data is on ext4 theb put the stock rom of your phone to /sdcard/dload the file name should be UPDATE.APP
(if you do this in twrp sdcard will be called external_sd then flash your stock oeminfo and shut the phone down then use dload 3 button method if theres no hardware problems your phone should boot up if its stays on huawei logo after flashing reboot stock recocery and factory reset and wipe cache this should fix it! Wish best luck for you
Hello,
tried your suggestions but they didn't work.
but nevermind, this thread can be closed, i've tried to flash every image from stock firmware over twrp and after reboot the Phone is completely death, doesn't even charge anymore.
thanks anyways for your replies!
best regards,
MarkusP87
Hey the same thing happened to me.. What you need to do now and I'm sure this will work just do everything
*Install the same TWRP from the Elite rom v5
*Reboot to recovery and go to "Mount"
*Enable everything (Cache, Data, System, Vendor, Product)
*Go back and then go to wipe > Advanced Wipe and wipe everything (Cache, Dalvik Cache, Data, System, Vendor, Product) Follow next step if wiping doesn't work now .
*Download region Patch for Elite ROMs (if you come from another region other than "C432") and put it in your sdCard https://goo.gl/JeQxdm
*Flash region patch before flashing Elite ROM and then (reboot) before flashing anything!
*Now again after you restart the phone, Reboot back to TWRP and wipe everything over again. And don't forget to change Data file system to f2fs
*Now download EliteRom v5 and Patch for VNS-l31 also download Launcher and sound fix and put them on your sdCard
EliteRom v5: https://goo.gl/AojsAf
Launcher and sound fix: https://www.androidfilehost.com/?fid=745849072291681155
Patch for VNS-L31: https://goo.gl/wXEvPD
*Now flash "EliteRom" then "Sound and launcher fix" then "Patch for VNS-L31"
*Now just reboot and tell me if you have any problems or if it didn't work because I have another way to fix it but I'm %100 sure it will work
---------- Post added at 11:13 PM ---------- Previous post was at 10:52 PM ----------
Another way to fix it and if you wanna go back to stock rom
*Download this C432oeminfo from here: http://www.mediafire.com/file/zr6dn2m3sd4q81i/C432OemInfo-DUALSIM-P9LITE.zip
*flash it via TWRP
*Now download this rollback package from here: http://download-c1.huawei.com/download/downloadCenter?downloadId=93645&version=371484&siteCode=np
*Extract and put files in dload folder on your sd card and flash with the 3 button method.
*Now download this stock rom from here and don't use any other rom just use that one http://update.hicloud.com:8180/TDS/data/files/p3/s15/G753/g104/v83116/f1/full/update.zip
*Now again extract and replace the files with the new ones on your sdCard and install via the 3 button method.
---------- Post added at 11:22 PM ---------- Previous post was at 11:13 PM ----------
Wait you said the phone won't even charge? But you need to get to fastboot to do everything..so idk but you can try this
Connect to pc and just before the screen turns on.. press and hold the volume down button maybe that will get you to fastboot
---------- Post added at 11:25 PM ---------- Previous post was at 11:22 PM ----------
anyway if you manage to get to fastboot.. just do the things I said and it will work
Hello,
yesterday everything adb,twrp and fastboot was working.
I've tried to flash boot,recovery,recover2 and system via TWRP update.zip (opened UPDATE.APP in Huaweiextractor and clicked create flashable zip) after reboot i did get an "ERROR MODE" , Please Update System now.
With ERR FUNC (hifi image).
Then i tried to Flash the complete update.zip (extracted everything from UPDATE.APP) from a VNS-L31C432B161 Firmware.
After reboot my Phone was Death, it doesn't turn on anymore nor does it regonoize any usb cable.
I think it's done now.
Thanks anyways for your reply!
best regards,
MarkusP87
MarkusP87 said:
Hello,
yesterday everything adb,twrp and fastboot was working.
I've tried to flash boot,recovery,recover2 and system via TWRP update.zip (opened UPDATE.APP in Huaweiextractor and clicked create flashable zip) after reboot i did get an "ERROR MODE" , Please Update System now.
With ERR FUNC (hifi image).
Then i tried to Flash the complete update.zip (extracted everything from UPDATE.APP) from a VNS-L31C432B161 Firmware.
After reboot my Phone was Death, it doesn't turn on anymore nor does it regonoize any usb cable.
I think it's done now.
Thanks anyways for your reply!
best regards,
MarkusP87
Click to expand...
Click to collapse
Mine is the same. I casnt loose this phone, I just got it a day.
harryhcs said:
Mine is the same. I casnt loose this phone, I just got it a day.
Click to expand...
Click to collapse
Hello,
i've found the Merchant where i bought it from and send it back to HUAWEI over Warranty.
We will see if i do get a working Phone back.
I'll post when i get or don't get a working Phone back.
greeTz,
MarkusP87
MarkusP87 said:
Hello,
i've found the Merchant where i bought it from and send it back to HUAWEI over Warranty.
We will see if i do get a working Phone back.
I'll post when i get or don't get a working Phone back.
greeTz,
MarkusP87
Click to expand...
Click to collapse
same happened to me, totally bricked (after upgrade to nougat) sent it to huawei service center and they replace it with new one, same model , just have to wait 3 weeks
Just a quick Update.
I've got my Phone back from a Service Center (not HUAWEI) off my Merchant.
They replaced the Mainboard so i have a new IMEI and Serialnumber.
So the Phone works now
best regards,
Markus
nnnnnnnn
MarkusP87 said:
Hello,
thanks for the link but as stated above i can't access Recovery nor Fastboot.
No matter which Buttons i press on Power i'm getting always HUAWEI Logo with "powered by android".
No USB Connection, i can just wait for the Battery to get low so that the Phone will turn off by itself.
best regards,
MarkusP87
Click to expand...
Click to collapse
DID you find a solution because i am in the same boat as you
I had the same problem so I ˇˇ shorted the test points got fastboot and unlocked the bootloader then flashed twrp and installed custom rom Elemental V3 installation procedure is at the instructions then my phone started and i finally upload the firmware:Ó
Adam7777777 said:
I had the same problem so I ˇˇ shorted the test points got fastboot and unlocked the bootloader then flashed twrp and installed custom rom Elemental V3 installation procedure is at the instructions then my phone started and i finally upload the firmware:Ó
Click to expand...
Click to collapse
hey how did you got fastboot with testpoint? process?
5pd said:
hey how did you got fastboot with testpoint? process?
Click to expand...
Click to collapse
Hi I opened the phone cover I used a steel paperclip I touched the test point at the same time and connected the phone to the pc and pressed the power button and volume down button and became a miracle phone ran into a fastboot I immediately downloaded elemental V3 and installed over twrp
Adam7777777 said:
Hi I opened the phone cover I used a steel paperclip I touched the test point at the same time and connected the phone to the pc and pressed the power button and fade button and became a miracle phone ran into a fastboot I immediately downloaded elemental V3 and installed over twrp
Click to expand...
Click to collapse
Tvl ...

Encryption unsuccessful bootloop

Hello everybody. After days of struggling with LGUP I finally managed to flash stock kdz file and boot my LG G6. However after booting I am welcomed with "Encryption unsuccessful" screen telling me that I need to wipe phone to use it. When I click wipe button it restarts itself and shows "erasing" but when that finishes it again shows me that same screen telling me to wipe it again. My bootloader is locked unfortunately, so I can't obviously flash TWRP or anything(I have unlock.bin but I can flash it because OEM unlock is not allowed in settings). I tried flashing with LGUP several more times with different kdz files, but when they succeed again same happens.
Also LGUP does not allow me to use "refurbish" flash mode(I can use only upgrade-so I can't erase the device), so if anyone has an idea how to wipe it off or something. I have feeling like recovery can't wipe it and because of that I always get that "encryption" error. I will post pictures for you to see. Many many thanks for any solution!
The very first step before you even thought about twrp since you already had the .bin file should have been to unlock bootloader.
Sent from my LG-H870 using Tapatalk
I had the same problem. What I did is use uppercat connecting the phone when it was in this screen to restart the process from the beginning.
imsonica said:
I had the same problem. What I did is use uppercat connecting the phone when it was in this screen to restart the process from the beginning.
Click to expand...
Click to collapse
Wait, uppercut would recognize phone when that screen is on, I thought phone must be in download mode for uppercut to work? And also just wondering why can't I wipe the phone, LGUP refurbish doesn't work, as far as I know storage must be formated to break that "encryption secure start up". Thanks for reply
In fact the screen is on in that specific encryption error.
In my case Uppercut was able to perform the operation, basically I stop the boot during encryption at first reboot and I had this error.
Thinking the TWRP recovery was able to fix it I installed it but the problem was still there. But with the TWRP on, the phone reset is not working, only way was to restart all the process, formatting the phone to be able to use it.
imsonica said:
In fact the screen is on in that specific encryption error.
In my case Uppercut was able to perform the operation, basically I stop the boot during encryption at first reboot and I had this error.
Thinking the TWRP recovery was able to fix it I installed it but the problem was still there. But with the TWRP on, the phone reset is not working, only way was to restart all the process, formatting the phone to be able to use it.
Click to expand...
Click to collapse
I was thinking that TWRP can rescue me since there is wipe option available, but I can't tick" allow OEM unlock " to unlock bootloader... So all I am left with is LGUP(uppercut) and stock recovery, and problem is I think none of them can wipe(reset) the phone. LGUP gives me error that "kdz file does not support refurbish flash"(no matter what kdz file I chose) and wipe in stock recovery simply does nothing. And BTW isn't Uppercut same as LGUP just with necessary .dll files so LGUP can work? Thanks
imsonica said:
I had the same problem. What I did is use uppercat connecting the phone when it was in this screen to restart the process from the beginning.
Click to expand...
Click to collapse
Just wondering so you flash everything while on the encryption screen or you went to download mode

A2017G only EDL mode available, need help with brick

Hello
Long story short, i digged out my axon 7 to use it with some music apps.
I wanted to return the phone to stock firmware, it had unlocked bootloader and running a custom nougat rom (AEX i think).
I followed this thread: https://forum.xda-developers.com/axon-7/how-to/guide-axon-7-universal-unbrick-t3814413 and flashed full EDL package.
Now when i try to turn on the phone, or enter recovery i see the boot logo and quick flash of the commandpromt with a broken droid and the phone turn off again.
I can still enter EDL mode and flash the phone.
Any ideas how i get it up and ruunning gain ? preferably on stock firmware
Thanks
Drunkenmazter said:
Hello
Long story short, i digged out my axon 7 to use it with some music apps.
I wanted to return the phone to stock firmware, it had unlocked bootloader and running a custom nougat rom (AEX i think).
I followed this thread: https://forum.xda-developers.com/axon-7/how-to/guide-axon-7-universal-unbrick-t3814413 and flashed full EDL package.
Now when i try to turn on the phone, or enter recovery i see the boot logo and quick flash of the commandpromt with a broken droid and the phone turn off again.
I can still enter EDL mode and flash the phone.
Any ideas how i get it up and ruunning gain ? preferably on stock firmware
Thanks
Click to expand...
Click to collapse
Use one of the less archaic methods:
Download "EDL Tool" from the ROMs, kernels, development section, along with an EDL package that goes with your phone model. Put your phone in EDL and just flash it with that tool. after that, if it still doesn't boot you have to format data, because you might have conflicting data. If you can't do it from EDL Tool (i think you can, don't remember) just enter the recovery with Vol+ and Power and make a factory reset
My story is very similar and now i'm stuck in EDL mode. I was able to flash stock Oreo B02 EDL package successfully and boot into OS. But after i was trying to unlock bootloader and reboot to recovery, ZTE logo appears for a second or two and then following error message starts looping:
(broken droid logo)
No command
Supported API: 3
E:failed to mount /cache: Invalid argument
E:Can't mount /cache/recovery/last_locale
EDL mode works but if i flash EDL package or boot/recovery again nothing changes, i still get the same error. Can't boot to OS any more and recovery does not work - screen just stays black.
So what are my options now to get it to work again?
From some other threads, I believe you could try to EDL flash Nougat instead of Oreo, it would work better.
https://forum.xda-developers.com/axon-7/help/help-edl-factory-restore-stuck-device-t4031619
I did that already but no luck, i still end up with the same error.
Is there some way to reformat or clean up internal storage completely in EDL mode? It seems that some garbage left behind by trying to unlock bootloader is surviving even EDL ROM flash and breaking OS boot.
xperiaatic said:
I did that already but no luck, i still end up with the same error.
Is there some way to reformat or clean up internal storage completely in EDL mode? It seems that some garbage left behind by trying to unlock bootloader is surviving even EDL ROM flash and breaking OS boot.
Click to expand...
Click to collapse
According to other threads, the problem could be due to "sparse" structure while flashing.
I suggest the following:
- Use Axon 7 EDL toolkit to flash latest official TWRP recovery (for Oreo a specific TWRP would be requied).
- Inside TWRP then wipe data/factory reset and at the utmost Format data. Then retry to boot.
- If not OK, reflash with EDL full ROM and try again.
Already done that for several times with O ja N EDL rom's but no luck. Can't get to recovery nor make system to boot.
Did you successful unlocked bootloader?
If not, I would recommended Axon 7 EDL Tool by djkuz, flashing nougat edl package and unlock it through the options.
Can you get into stock recovery after flashing EDL package? It supposed to have a format option for userdata and cache.
Did you try to get into fastboot mode? Power + Vol up buttons if i'm not wrong.
If so, you could try to format these partitions.
fastboot erase /cache
fastboot erase /data
I have experienced the same problem but I have resolved flashing, with Xiaomi MiFlash (sometimes I use this program because occasionally flashing EDL packages with AxonEDLTool, it gives me problems like this) this package Axon7_RR-O_B32-B10_TREBLE-Ready_Oki20180803_FULL_EDL.
With this EDL, if the flash is successful, you will find NFound recovery 3.2.1-7 installed with which you can make a complete wipe and / or format them with the file system you prefer.
Afterwards, using MiFlash or EDLTool at your discretion, you can flash the EDL of the original system if you prefer.
I'm not an expert but this has solved my problem.
To unlock the bootloader, if the unlocking with EDLTool does not go well (it happened to me just yesterday while I was installing a Rom on another Axon 7), you can use Axon7ToolKit 1.2.1, it always worked well for me.
I hope it can help :fingers-crossed:.
xperiaatic said:
My story is very similar and now i'm stuck in EDL mode. I was able to flash stock Oreo B02 EDL package successfully and boot into OS. But after i was trying to unlock bootloader and reboot to recovery, ZTE logo appears for a second or two and then following error message starts looping:
(broken droid logo)
No command
Supported API: 3
E:failed to mount /cache: Invalid argument
E:Can't mount /cache/recovery/last_locale
EDL mode works but if i flash EDL package or boot/recovery again nothing changes, i still get the same error. Can't boot to OS any more and recovery does not work - screen just stays black.
So what are my options now to get it to work again?
Click to expand...
Click to collapse
Hi, just want to let here my solution for the same problem, it may help others.
I tried to flash A2017G_B10_NOUGAT_FULL_EDL and A2017G_B02_OREO_FULL_EDL but always getting the Can't mount /cache/recovery/last_locale error, phone completely bricked.
So I flashed A2017_B13_FULL_EDL_UNBRICK_DFU using MiFlash through EDL, you can find this here: https://forum.xda-developers.com/axon-7/how-to/a2017-4th-category-brick-repair-manual-t3585898 (if your EDL mode works fine there is no need to disassemble the phone as shown in that tutorial)
Now the phone is completely working, recovery and system, but everything in chinese.
Then I flashed A2017G_B02_OREO_FULL_EDL using MiFlash through EDL, and now everything is working and in english
Thanks a lot for the tip! A2017_B13_FULL_EDL_UNBRICK_DFU did the trick and unbrick the phone.
What i did:
1. used MiFlash to flash A2017_B13_FULL_EDL_UNBRICK_DFU
2. after that A2017G_B03_OREO_FULL_EDL
3. reboot to recovery and performed factory reset
First time I did not perform the factory reset and got stuck on the boot picture without the reset function (power button did not work). Drained the battery and performed factory reset and got the phone working again.
update:
Phone is not stable on B03, some apps crashing from time to time for no apparent reason and also soft reboots happening randomly.
Now I got stuck on the Axon boot screen again after rebooting the phone manually and waiting for the battery to drain ...
i did not install or perform any custom action to the system, just regular use and apps, but it is still acting up badly.
I was planning to use this phone as a secondary handset because it is actually a very nice piece of hardware but now i am starting to have second thoughts about that.

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