Database Develop

Bootloader Issue | FRP Lock | Root Guide

UPDATED:
Issue has been solved
( i buy 4 credits from dc unlocker and use HCU to read my boot loader code )
yes i know this is all from dc unlockcer yes they , unbrick my P9 but they also
changed the boot code when you flashed the rom via DC phoenix
im suspecting it that way .
Hello guys. Debranded P9 here
Nougat C432B386 Eva-L09
hw eu :country vendor
Bootloader unlocked and FRP lock
my device gets suffer from a hard brick
and recovered by DC Phoenix. In order to
have a Stable Nougat Firmware i decide to
debrand my phone ......
1st attempt : flashing the (.dgkmts AL10 chinese rom)
after flashing the chinese Al10 firmware
from DCUnlocker (.dgkmts) the device boot and
can be flashed into original stock rom
but the first attempt fails because my
vendor comes from a different build
2nd attempt: flashing the (.dgkmts AL10 chinese rom)
but this time, i decide to wipe NVME and OEM
after booting into system and checking my device
details my IMEI stays the same but Serial No is missing
so i had to use HCU to write my IMEI and Serial No.
and obtain a new vendor from hw eu
after booting system, I start to forced update the
EVA-L09C432B136
then i unlocked my bootloader at this stage
using the same bootloader code from Huawei
FIRMWARE:EVA-L09 C432B136
( please focus on this, i already unlocked the bootloader​
here , and allow the oem to unlock )
status : bootloader unlock
frp unlock
the process is successfully done and after that
i check my device details and perfectly debrand
my P9, after a minute it received an OTA update
from Huawei System Updater ( C432B186 )
I update into it and reboot and received another update
again C432B322 ( Nougat-beta version) and then
received the Final Build C432B386
SUMMARY STAGES:
bricked and wiped oem info / SN rewrite using HCU
1. AL10 Chinese rom >
2. C432B136 ( stock firmware)
( do unlocked bootloader )
3. OTA C432B186
4. OTA C432B322 ( Nougat beta )
5. OTA C432B386 ( Nougat Stable)
status : bootloader unlock
frp lock
I'm into that version C432B386
and now im having a trouble here
flashing the original bootloader code
command : fastboot oem unlock xxx-xxxx-xxx
it says : wrong password
failed to write the command
" is it possible to obtain a new bootloader code ?"
i don't know why the boot code changed even though
i use it in unlocking my Bootloader and it succeed
2nd scenario:
when i try to go to developer options and
go to Allow oem unlock
so that i can be able to obtain FRP unlock
but it is greyed out.
" i've read that if you're on Nougat and you are already
in unlocked bootlader, you will have this issue "
the possible way of unlocking FRP is relocked the
bootloader first and the OEM UNLOCK option will
come out.
i guess the solution is finding a new Bootloader code
but "how?" does anyone knows this?
3rd scenario: flashing new recovery
( expecting to have administrative rights )
i try to flash also the twrp nougat version
but it says verification error
command : fastboot flash recovery twrp3.1.0-3-eva.img
failed
i don't want to end up bricking my device again
I'm having a hard time to resurrect this and I don't
want to happen it again, I'm busy with my work so
i have to asked you guys, finding a best way how
to fixed this..
if someone is having a same situation like me
please participate on the thread and or someone who
already fixed this kind of issue please give us information . thank you !

oem info / SN rewrite using HCU
You rewrited the serial number? Yeah I don't know how to help you there...

benjamen50 said:
oem info / SN rewrite using HCU
You rewrited the serial number? Yeah I don't know how to help you there...
Click to expand...
Click to collapse
yes sir , there is HCU Client tool that can re-write Serial Number/IMEI / read bootcode
i use it and replaced the missing Serial Number of my device

vinfrix said:
yes sir , there is HCU Client tool that can re-write Serial Number/IMEI / read bootcode
i use it and replaced the missing Serial Number of my device
Click to expand...
Click to collapse
Imo, If you change serial.no then your unlock code would be different

Try relocking and again unlocking the bootloader.

_Frostplexx_ said:
Try relocking and again unlocking the bootloader.
Click to expand...
Click to collapse
i tried to but the code seems already changed.

FiKsTyLeR said:
Imo, If you change serial.no then your unlock code would be different
Click to expand...
Click to collapse
even if i write the same serial code ?

vinfrix said:
i tried to but the code seems already changed.
Click to expand...
Click to collapse
Dude i am in a similar situation.
I have the bootloader unlocked but frp is locked.
When you relocked and unlocked was the OEM unlock option changeable (not grayed out, no FRP LOCK) again?

revery0 said:
Dude i am in a similar situation.
I have the bootloader unlocked but frp is locked.
When you relocked and unlocked was the OEM unlock option changeable (not grayed out, no FRP LOCK) again?
Click to expand...
Click to collapse
yes if you unlock again it will come out

vinfrix said:
yes if you unlock again it will come out
Click to expand...
Click to collapse
As it turns out, you need to rollback to b182 and then upgrade to N through OTA.
dload b300
dload b182
OTA b386
OEM Unlock, ADB Debugging, USB Debugging
Unlock bootloader
twrp

revery0 said:
As it turns out, you need to rollback to b182 and then upgrade to N through OTA.
dload b300
dload b182
OTA b386
OEM Unlock, ADB Debugging, USB Debugging
Unlock bootloader
twrp
Click to expand...
Click to collapse
why should i rollback ?

Bricked and can't get unlock bootloader

Hope someone can help me out here. Here's what happened:
1. Bricked my phone after downgrading firmware
2. Unable to load and stuck on Huawei logo
3. Can't enter recovery with the vol up + power buttons
4. Only can boot into bootloader with vol down + power buttons
5. Used DC Unlocker to view all the required info to generate unlock code - IMEI, Serial no., etc.
6. Retrieved code generated from Huawei site and Product ID Generator
7. Tried unlocking bootloader with SRK tool or manually via fastboot but it kept showing - fastboot oem unlock *my unlock code* > FAILED (remote: Command not allowed).
8. Reinstalled USB driver and tried again but still the same error
I've also tried dload with the stock update.app downloaded from official Huawei site and the 3 buttons combination (vol up + vol down + power) doesn't work at all.
I'm not sure what else I can do now. Hope someone can be able to help. Thanks in advance.
Update: after struggling for a few weeks trying to unbrick the P9 and my local Huawei service center tried to charge me for at least $400 and claimed that they need to change the board to fix it, DC Phoenix was able to sort my problem out with 15 Euros. It was well worth it and I got my P9 back to working state again.
Here's what I realized happened to my phone before it was bricked. All partitions were corrupted due to a bad update.app or possibly due to a bad cable (noticed it was torn up like one of those apple cables).
DC Phoenix - You don't have to worry if your bootloader or FRP is still locked. It'll use a backdoor to write every partition from a stock .app firmware file and that's pretty neat.
Lesson learnt and to anyone who's trying to root, downgrade, flash or fiddle with anything on your Huawei, enable your OEM unlock in developer options or you'll get a hard time trying to unbrick if anything goes wrong.
Revived: Huawei P9 (EVA-L19)

I've gone through that before, but ended up using DC-Phoenix to unbrick it when it's FRP and bootloader locked. Cost me about $15. There is a post on how to do this but I'll have to search for it again.
Here is the post I used:
https://forum.xda-developers.com/showpost.php?p=71767614&postcount=7
This was done using a EVA-L09 phone.

Thanks for the information @benjamen50. I've considered using DC Phoenix too but that software doesn't look too assuring.
I'll update once I have the time to try DC Phoenix.

paperheart said:
Thanks for the information @benjamen50. I've considered using DC Phoenix too but that software doesn't look too assuring.
I'll update once I have the time to try DC Phoenix.
Click to expand...
Click to collapse
It works 100%. I had to use it too to unbrick my device good luck

I was stuck on same scenario, have cell under warranty and things normal after submitted to service center, but before went to service center, i searched over the internet, you just de-brand your cell and all things will be normal

May I ask, how and where did you get the unlock code?

Update: after struggling for a few weeks trying to unbrick the P9 and my local Huawei service center tried to charge me for at least $400 and claimed that they need to change the board to fix it, DC Phoenix was able to sort my problem out with 15 Euros. It was well worth it and I got my P9 back to working state again.
Here's what I realized happened to my phone before it was bricked. All partitions were corrupted due to a bad update.app or possibly due to a bad cable (noticed it was torn up like one of those apple cables).
DC Phoenix - You don't have to worry if your bootloader or FRP is still locked. It'll use a backdoor to write every partition from a stock .app firmware file and that's pretty neat.
Lesson learnt and to anyone who's trying to root, downgrade, flash or fiddle with anything on your Huawei, enable your OEM unlock in developer options or you'll get a hard time trying to unbrick if anything goes wrong.
Revived: Huawei P9 (EVA-L19)

randomusername85 said:
May I ask, how and where did you get the unlock code?
Click to expand...
Click to collapse
The code is generated from a combination of model, product serial number, IMEI and product ID. Here are the steps to get all those details:
Head to this site - https://emui.huawei.com/en/plugin/unlock/detail
Login or signup if you don't have an account. Under 'unlock' page there's a form you'll need to fill
On your device:
Go to Settings > Developer Options and enable OEM unlocking
IMEI and serial number can be found in Settings > About > Status
Dial *#*#1357946#*#* to get your product ID
Fill in all these details in the form on emui site and it'll generate an unlock code for your device.

paperheart said:
The code is generated from a combination of model, product serial number, IMEI and product ID. Here are the steps to get all those details:
Head to this site - https://emui.huawei.com/en/plugin/unlock/detail
Login or signup if you don't have an account. Under 'unlock' page there's a form you'll need to fill
On your device:
Go to Settings > Developer Options and enable OEM unlocking
IMEI and serial number can be found in Settings > About > Status
Dial *#*#1357946#*#* to get your product ID
Fill in all these details in the form on emui site and it'll generate an unlock code for your device.
Click to expand...
Click to collapse
cannot access my device

[HELP] Oreo brick After UPDATE.

Brick Huawei after update oreo
Situation:
Phone LOCKED(Green)
FRP LOCKED(green)
Stock RECOVERY
after boot go ERECOVERY.
How To restore ?

With locked bootloader you have no chance to restore without official Huawei Services via Download in eRecovery or payed services like DC Pheonix tool or FunkyHuawei.
Try the official eRecovery method first. If this doesn't work try it with HiSuite. Your bootloader is locked, that means that it should be possible, because the phone didn't detect any modified files. With modified files or partitions the bootloader won't lock normally.

If you have the code to unlock the bootloader you can search for HWOTA. Its a tool that you can use rebrand the phone. You find loads of guides on here to find out how to get the unlock bootloader code. If you find yourself not able to get the product id, serial number, imei to unlock it you can find it on the box that came. You only really need the imei and you can put it in here (http://www.imei.info/) and get all the other stuff. Then once you have the code you can run the bat in HWOTA and rebrand the phone through its instructions.

can't unlock because FRP LOCK (GREEN).... i was try erecovery method 100% download and failed installation.

Huawei p8 lite 2017 bricked after wrong oem flash

(SOLVED) So I wanted to debrand my phone, and I saw this post https://forum.xda-developers.com/p9/development/c432-oeminfo-flash-twrp-t3384903
problem is, the oem I flashed with twrp was for the p9 lite, now my phone doesn't boot inside the os, it only goes to huawei erecovery but the download always fails. I can boot to fastboot mode but everything I try to do it says command not allowed, only fastboot devices work
I hope someone can help me as I really need my phone for work, thanks very much
my original cust was C02
I also have a twrp backup I did, but I just cant get inside twrp because as soon the phone turns on it goes to erecovery
Edit: i finally resolved and I'm going to really help you if you flashed the wrong oem file just like me, just follow these steps:
1. since you installed a new oeminfo, you are gonna need to unlock the bootloader again, (just like you did the first time), but wait! here is what I did wrong, when you request an unlock code, huawei in the unlock page is gonna ask you for your imei and serial number, I was lazy and I got my imei via fastboot instead of checking the one on my phone's box, worst idea ever because when you flash another oem your imei is gonna change so that's why in the site it said sn and imei are mismatching, so take the IMEI on your phone's box and NOT via fastboot. Anyway, let's go to part 2
2. in the unlocking site they are gonna ask for a product id wich you can get by writing *#*#1357946#*#* in the phone's dialpad, but you're probably thinking "how can I do that if my phone does't boot the os?" but don't worry my brudda! just download this https://cloud.mail.ru/public/KGmS/1cEhHg1G6 , open it and chose huawei y300-0100 as product model, then put your IMEI (take the one from your phone's box!!) and it's gonna give you the product id you need in the huawei site.
3. once they give you the unlocking password, power off your huawei and connect it in your pc with your usb while holding the volume down button, you should go in fastboot mode
4. once you are in fastboot mode write in the cmd fastboot oem unlock (9982883838382365) <<(instead of this numbers write the unlocking password they gave you in the huawei unlocking site) aaaand done, you unlocked the bootloader once again.
5. if you previously had twrp (before flashing the wrong oem file) it's gonna pop up when you boot the phone, now you can use fastboot or twrp again to flash the right oem (or stock rom)
I REALLY HOPE I'M GONNA HELP YOU BECAUSE I KNOW HOW BAD IT FEELS WHEN YOU BRICK YOUR DEVICE LIKE I DID!!
Now bye everyone I need to go play soccer and I'm late

yeahboi99 said:
So I wanted to debrand my phone, and I saw this post https://forum.xda-developers.com/p9/development/c432-oeminfo-flash-twrp-t3384903
problem is, the oem I flashed with twrp was for the p9 lite, now my phone doesn't boot inside the os, it only goes to huawei erecovery but the download always fails. I can boot to fastboot mode but everything I try to do it says command not allowed, only fastboot devices work
I hope someone can help me as I really need my phone for work, thanks very much
my original cust was C02
I also have a twrp backup I did, but I just cant get inside twrp because as soon the phone turns on it goes to erecovery
Click to expand...
Click to collapse
FRP status? (in fastboot)
Phone status? (in fastboot)

unlock the bootloader again, even if it says its locked, after that fastboot should work fine. then you can try again booting into twrp and flash the right oeminfo

Alex261099 said:
FRP status? (in fastboot)
Phone status? (in fastboot)
Click to expand...
Click to collapse
Hi thanks for the reply
when I open fastboot under the little android guy it says:
PHONE Unlocked
FRP Unlock

yeahboi99 said:
Hi thanks for the reply
when I open fastboot under the little android guy it says:
PHONE Unlocked
FRP Unlock
Click to expand...
Click to collapse
firstly try to unlock the bootloader
if nothing happens
a. start praying
b. relock and then unlock the bootloader.... it's the only thing that i have in mind
i'm not responsible for any damage

Striike said:
unlock the bootloader again, even if it says its locked, after that fastboot should work fine. then you can try again booting into twrp and flash the right oeminfo
Click to expand...
Click to collapse
hi thx for the tip but i'm in the huawei unlock page and it's asking me for my phone's product id, wich you can only get by dialing *#*#1357946#*#* in the dialpad

yeahboi99 said:
hi thx for the tip but i'm in the huawei unlock page and it's asking me for my phone's product id, wich you can only get by dialing *#*#1357946#*#* in the dialpad
Click to expand...
Click to collapse
have you ever unlocked your bootloader?
have you saved the code? it's the same

Alex261099 said:
have you ever unlocked your bootloader?
have you saved the code? it's the same
Click to expand...
Click to collapse
I unlocked my bootloader once but I didn't save the code, I still have the account I used the first time tho

yeahboi99 said:
I unlocked my bootloader once but I didn't save the code, I still have the account I used the first time tho
Click to expand...
Click to collapse
have you used windows for unlocking?
if yes windows 10?
if yes have you used powershell?
if yes press arrow up until you see fastboot oem unlock "number", copy the number (it's the code!!!)
if no .... idk i'll do some research

yeahboi99 said:
I unlocked my bootloader once but I didn't save the code, I still have the account I used the first time tho
Click to expand...
Click to collapse
Lesson in life: ALWAYS save the bootlocker unlock code
Good luck

Alex261099 said:
have you used windows for unlocking?
if yes windows 10?
if yes have you used powershell?
if yes press arrow up until you see fastboot oem unlock "number", copy the number (it's the code!!!)
if no .... idk i'll do some research
Click to expand...
Click to collapse
I used cmd in windows 10 and it doesn't have the arrow key
thanks for helping me XD and by the way I checked my imei on a site and it says that my device is a p9 (what the heck?) I guess I need to install some p9 files to make my phone work again?
grazie

yeahboi99 said:
I unlocked my bootloader once but I didn't save the code, I still have the account I used the first time tho
Click to expand...
Click to collapse
you should have got an email with the code in it, it was like this for me.

Striike said:
you should have got an email with the code in it, it was like this for me.
Click to expand...
Click to collapse
I got it directly in the site I also tried this method https://forum.xda-developers.com/p9/help/how-to-product-id-bricked-p9-t3561156
but when I click on commit after writing all in the huawei unlock site bars it says SN and IMEI are mismatched

I mean you really f***ed up there. I thought that you could restore the device by eRecovery but If you would do that you would brick it completely bc it would Download everything for the p9...
you can't do anything without the unlock Code.
You could otherwise try to force upgrade via dload
---------- Post added at 09:05 PM ---------- Previous post was at 09:02 PM ----------
You could try this Generator https://cloud.mail.ru/public/KGmS/1cEhHg1G6
or DC unlocker (costs money)

You can use Firmware finder for PC and eRecovery DNS method to restore your phone to any firmware you want

[SOLVED] Your device is Currupt, it can't be trusted and will not boot.

Yesterday, I was going to lock my bootloader to cell my Nokia 8 cuz' I needed money. Being the noobie that I'm I didn't have my unlock key saved anywhere. and couldn't get a new one because the stupid Bootloader unlock app doesn't work on Pie. I did know that locking the bootloader doesn't require a key. So I just went with it without remembering that I still had TWRP instead of stock boot img installed. So when I locked the bootloader the phone booted into a screen similar to the unlocked Bootloader warning screen. But it said "Your Device is corrupt. It can't be Trusted and will not boot." Instead. So now I have locked bootloader with TWRP that I can't boot into. I still can boot into fastboot mode but I can't do much Because LoCkEd BooTlOaDeR. The only sulotion is to unlock the bootloader with an unlock key Which I don't have and flash stock boot. So please help. You'll be literally saving my life. This is my first thread ever on the internet so forgive me If I made any mistakes:laugh:
EDIT: I took my phone to the service centre near me and they were able to fix it

CommieTurtle said:
Yesterday, I was going to lock my bootloader to cell my Nokia 8 cuz' I needed money. Being the noobie that I'm I didn't have my unlock key saved anywhere. and couldn't get a new one because the stupid Bootloader unlock app doesn't work on Pie. I did know that locking the bootloader doesn't require a key. So I just went with it without remembering that I still had TWRP instead of stock boot img installed. So when I locked the bootloader the phone booted into a screen similar to the unlocked Bootloader warning screen. But it said "Your Device is corrupt. It can't be Trusted and will not boot." Instead. So now I have locked bootloader with TWRP that I can't boot into. I still can boot into fastboot mode but I can't do much Because LoCkEd BooTlOaDeR. The only sulotion is to unlock the bootloader with an unlock key Which I don't have and flash stock boot. So please help. You'll be literally saving my life. This is my first thread ever on the internet so forgive me If I made any mistakes:laugh:
EDIT: I took my phone to the service centre near me and they were able to fix it
Click to expand...
Click to collapse
Hello! I have the same problem! (((You were not interested in what exactly or how you should do to correct the error? And how much money did you get for repair?

Well you can use original OST not NOST and flash signed images (.NB1) without unlocking bootloader.

KonikoO said:
Well you can use original OST not NOST and flash signed images (.NB1) without unlocking bootloader.
Click to expand...
Click to collapse
Only with service point authorization as far as I know. OST (and NOST by extension) usually show you a login prompt when you launch them. Service Points login to a server that generates a temporary unlock key, which allows OST to reflash the partitions. With the proper authorization, even NOST could flash .qlz files (as long as the images inside are official and signed) with a locked bootloader.
Since we don't have service point permission we have to patch the tool to ignore it (both NOST and the hacked OST). It will still try to request the temporary key, fail, and pass an empty value to the bootloader. To get the bootloader to accept the following flashing commands, you have to unlock it.