Downgrade 8.0.0.157 C433 to a DC Unlocker version ? - Huawei Mate 10 Guides, News, & Discussion

Hello my friends,
I had an iPhone before so it might be very complicated for me.
As I understand, the bootloader code works only with a specific firmware (I have a mate 10 Pro).
My actual version is 8.0.0.157 C432 (newest).
As I read they updated the xloader to 02 ? On which version can I downgrade to use DC unlocker ? Tried it yesterday but I get a error message that my device is not supported (error code 375).
Or are there other solutions to unlock my boot loader ? Paid already 4 euro for the DC unlocker account.

You can not downgrade a 02 xloader based firmware to a 01 xloader based firmware. Dont try it. It will hard-brick your phone and there is no way to unbrick it. As your bootloader is still locked, you can not use any no-check recovery method to downgrade, but what you can do is get bootloader unlock code by using dc huawei bootloader code app. You have to pay 25€ as I remember and they get your bootloader unlock code using your IMEI.

Related

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 ?

[Request] Huawei GR3 2017_PRA-LA1C185 Screenshot

Hi,my name is Youssef
My phone has been bricked after I flashed the oem info of PRA-LA1C185 so I need someone to send me screen shots of
Settings->About phone
And
Settings->About phone->Status
Or send me the unlock code from EMUI site
I need those to unlock my bootloader
My phone's condition:
1-Fastboothone Relocked and FRP Locked
2-Recovery:TWRP flashed but can't access it because the phone is locked
3-Overall:the phone boots to eRecovery everytime and when I press "Download Latest Version And Recovery" it fails to get package info
So please I need someone to send me those screenshots so I can recover my phone
And if you have any advice about recovering my phone please tell me
The screenshots won't do you any good...every phone has it's special unlock code...and as long as the frp is locked you can't unlock the bootloader even if you have the unlock code...
The only way in your case is to use DC- Phoenix tool to unbrick your device... it's a paid service and it will cost you 15 Euros
Sent from my PRA-LA1 using Tapatalk
hamzio7 said:
The screenshots won't do you any good...every phone has it's special unlock code...and as long as the frp is locked you can't unlock the bootloader even if you have the unlock code...
The only way in your case is to use DC- Phoenix tool to unbrick your device... it's a paid service and it will cost you 15 Euros
Sent from my PRA-LA1 using Tapatalk
Click to expand...
Click to collapse
But there's too many options
Unlock Huawei ID and FRP for 15 Euros
Or force frimware write also for 15 Euros
And there's a "Unlock Honor 8 Lite 2017" for 4 Euros
so what do I choose?
Find the best choice for your case.
I think a force firmware flash will do it for you...in my case i chose to unlock the bootloader and frp and do the rest manually...but if you are not an expert choose the force firmware write.
Sent from my PRA-LA1 using Tapatalk

[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.

Downgrade

Please can anyone help me with downgrade from emui 9 to emui 5 without bootloader code?or with getting bootloader code on emui 9?
You cannot downgrade without unlocked bootloader. To get an unlock code look at DC Phoenix for example, but it's a paid service.
BloodBullet said:
You cannot downgrade without unlocked bootloader. To get an unlock code look at DC Phoenix for example, but it's a paid service.
Click to expand...
Click to collapse
thanks, but dc unlocker works only on emui 5 thats why i want to downgrade

Questions about bootloader unlock with DC-unlocker

I have been trying to contact DC-unlocker to get some information but they are not providing me with much,
Ii have p30 pro VOG-L29
They told me I have to downgrade to android 9 to unlock BL but if I upgrade it will relock I asked them if I get the BL code I can unlock it again they said yes if my phone allow it
Did anyone tried thier app, do i get the BL code? How can I know if my phone support unlock on higher FM?
I want to unlock cause I want to root

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