[Tutorial] How to unlock bootloader without original unlock key from Huawei!

[Exconvinced]

Hi all, i confirm this method works for Y5 (2017) MYA-L03, now there is another question, what happend if you revert back to the original proinfo_0x80000 file you backup, you can brick the phone????

Thanks for confirming compatibility for the MYA-L03 variant.

With regard to flashing your original proinfo file backup, it would not brick your device because it follows the same process of flashing this proinfo provided by @salembream. You can still restore back your device's original IMEI and serial number even if you unlocked the bootloader using different device's proinfo.

If you wish to retain the unlocked status of your bootloader, I suggest that you root your device now, and from there you can access the filesystem using root browser apps and manually edit the values of IMEI and serial number.

You can look up for tutorials on Google or YouTube on how to do so. I see this as a better option than flashing your original proinfo backup file as you might lock your bootloader again, unless you have you kept your personal bootloader unlock code specific for your own proinfo.

I have a request. If you have your MYA-L03 proinfo + bootloader unlock code, would you mind uploading it? I would like to try the instructions in this thread on a Y5 2017, MYA-L02 variant this time. Thanks.

---------- Post added at 05:41 PM ---------- Previous post was at 05:23 PM ----------

if i relock my bootloader again will i lose my twrp recovery and my custom dotos rom which i flashed ?

Based on several sources, relocking bootloader with custom ROM and recovery installed can softbrick devices, which is difficult to recover. It is understood that some of us get annoyed of the warning screen during the device's startup, but we have to deal with it because it is us who chose to unlock our devices' bootloaders anyway.

Also, it is worth noting that every after unlock or relock of bootloader, the system will immediately proceed to a data wipe, provided that the stock recovery is installed and not TWRP.

So, yeah. relocking bootloader can wipe data and can also brick your device.

Read here:
https://xdaforums.com/u11/how-to/recovering-idiocy-relocked-bootloader-t3847646/amp/
https://forums.oneplus.com/threads/...-it-cant-be-trusted-and-will-not-boot.749830/
https://forums.oneplus.com/threads/dont-lock-bootloader-after-rooting.859564/

---------- Post added at 05:51 PM ---------- Previous post was at 05:41 PM ----------

Bro please help, when i typ command fastboot oem unlock 54untilend then it show waiting any devices, its not erase/wipe my data. What i have to do ?

First, ensure that you have ADB drivers installed in your Windows. This allows your Android device to be recognized while in ADB or in fastboot mode. To start, kindly visit this link: https://m.youtube.com/watch?v=DPWEG3kkvXU

Once installed, boot up your device into fastboot then connect your device to your computer. Open Command Prompt (CMD) and input the following string: fastboot devices
You should see that your device is now recognized

After that, proceed with fastboot oem unlock command.

// Update //

The proinfo file also supports MYA-L02 variant.

As @salembream mentioned, you may edit the serial number written in the downloaded proinfo and change it with your device's default one. To edit, go to https://hexed.it/ and click "Open File" to upload the proinfo. Change both "R1KBBCB111111111" & "R1KBB11111111111" with your device's default serial number (written at the back of your device, usually on the battery pack). Make sure that the serial number has 16 characters. Click "Export" afterwards and proceed with flashing the new proinfo file via SPFlashTool. Although you modified the proinfo, you will still use the posted bootloader unlock command: fastboot oem unlock 5A4CB78CF6711B04.

 

[xpert45689]

Proinfo TWRP backup

Can you please backup proinfo and upload it? Something's wrong with my scatter_file and spflashtool, after 43s, gives a timeout error.

 

[bummer500]

CUN-L21

Are these files suitable for CUN-L21 too?

Thank you.

Hey there! I might be able to help. I own the same phone and if you want I can try and help you with this.

---------- Post added at 10:41 AM ---------- Previous post was at 10:25 AM ----------

When I type this command,
fastboot oem unlock 5A4CB78CF6711B04

It show's like this " <waiting for any devices> "

How can I fix it?

Hey there! Do you have USB Debugging enabled and all the drivers required for this installed? If you do not have USB Debugging enabled on your device to enable it you have to do this. :
1. Go in settings and at the bottom you see "About phone".
2. In there tap the "Build number" until it says "You are now a developer"
3. Enable USB debugging in the Developer Settings.
Also make sure that you enabled in Developer Settings the OEM Unlock.

 

[MikeAngel0]

Huawei Y5 Pro (MYA-L13)

Hello!

I recently acquired a Huawei Y5 Pro (MYA-L13), does this method works on this model too?

I've seen other comments that says this method worked for their respective device, being a different model than mine. I just want to be sure this can be done with different models of the same Huawei Y5.

Thanks in advance.

 

[chuby007]

Confirms this work with MYA-L23

Everything you do with your device, you do at Your own!

make sure to have backups as your phone will format itsekf

At first all the instructions and files are from 4pda forums, I just represent them ! ,, if this is not allowed contact me and I will delete it.


Second, this is for advance users, who already know how to deal with " SP flash tool", not for those who needs help when they fail to follow the instructions. [ I will try to mention every detail I remember tho]

Third, lets unlock it!

To unlock your phone without the unlock key " Huawei stopped providing it ", you have to flash the proinfo partition of another mya-l22 which you know the unlock key for it and then unlock the phone with the known key. so we will use the proinfo and the key of the phone from nice guy posted them in 4pda forums.


1. Download SP flash tool and drivers for our phone and install them.
link [note: there are 3 installer for the driver, I think I used the first one only].

2. Open SP flash tool, then ..
note: these files are in _MAYA_L22 sub-folder of SP flash tool
a. select Download Agent : "MTK_AllInOne_DA.bin"
b. select the scatter file: "MT6737T_Android_scatter.txt"

3. Backup proinf partition..
a. Press on Readback tab.
b. Press on "Add" button.
c. Double click on the new entry, and chose where you want to save the backup.
d. Select Type: Hex.
Region EMMC_USER
Start Address: 0x80000
Length: 0x300000
e. Press Read Back button " the green arrow "
f. now make sure your phone is turned off,
press and hold the down volume button and plug the USB cable..
keep pressing the volume down button untill the backup process is done.


4. Flash the new proinfo partition:
a. Download the file: proinfo
[ note: you may edit it using hex editor and replace the serial keys from your backup. ]
b. Make sure to turn off your phone and disconnect the USB.
c. In SP flash tool press " ctrl + alt + v ", to enable the advanced mode.
d. from "Window " in menu bar select " Write memory"
e. New tab will be available "Write memory "open the it.
f. Set File path: the downloaded file from above "proinfo_0x80000"
Begin address: 0x80000
Region : EMMC_USER
"by DRAM"
g. click on write memory
h. now as before press and hold volume down button on your phone and plug the USB cable.
i. keep pressing the volume down button untill the flash is done.


5. Unlock the phone!!
a. make sure to enable "OEM unlock" from developer option in your phone.
b. boot your phone to bootloader " fastboot" .
c. from your PC open the "minimal adb tool " or what you have ..
d. type this command :
fastboot oem unlock 5A4CB78CF6711B04
e. done !! your phone will report now and it will do a full factory reset and will delete every thing .. so make sure to have backups


CONGRATS! YOUR PHONE IS UNLOCKED!!!

This works with MYA-L23

Esto sirve con MYA-L23

 

[plictisitorul2003]

Does this work with DRA-L21? Thanks!

 

[Nadeera_silvaaa]

Huawei y5 2017

Any who knows how to backup proinfo file of huawei y5 2017. Please help someone

 

[aby.du.13]

thnqs man work fine in mya-l41

:laugh:

 

[reverser69]

doesnt work with y5 dra-lx5 1.0.0.125 c185
can someone please provide me with correct files?

 

[reverser69]

anyone can help, please? I get chipset error in y5 lite

 

[onasre]

anyone can help, please? I get chipset error in y5 lite

yes Becuase y5 2017 is MediaTek MT6737 and y5lite is MediaTek MT6739 ... i do not think it going work , you need proinfo file from unlocked bootloader of dra-lx5 phone ..

 

[Taimoor0544]

Help!

Not worked After many tried Am I missing something! Help me Unlocking my Huawei y5 2017 mya-l22

 

[alexmluengoc]

Gracias funciono mi HUAWEI Y5 II CUN-L03 me arriesgue porque no es el mismo modelo pero hoy soy libre gracias.

 

[billythefly]

Hi,
Everything is ok with MYA-L11 !!! Searching for unlocking since months and just find your thread.
Great job, great tuto and thank you so much for this thread.
BTF

 

[indestructible master]

Everything you do with your device, you do at Your own!

make sure to have backups as your phone will format itsekf

At first all the instructions and files are from 4pda forums, I just represent them ! ,, if this is not allowed contact me and I will delete it.


Second, this is for advance users, who already know how to deal with " SP flash tool", not for those who needs help when they fail to follow the instructions. [ I will try to mention every detail I remember tho]

Third, lets unlock it!

To unlock your phone without the unlock key " Huawei stopped providing it ", you have to flash the proinfo partition of another mya-l22 which you know the unlock key for it and then unlock the phone with the known key. so we will use the proinfo and the key of the phone from nice guy posted them in 4pda forums.


1. Download SP flash tool and drivers for our phone and install them.
link [note: there are 3 installer for the driver, I think I used the first one only].

2. Open SP flash tool, then ..
note: these files are in _MAYA_L22 sub-folder of SP flash tool
a. select Download Agent : "MTK_AllInOne_DA.bin"
b. select the scatter file: "MT6737T_Android_scatter.txt"

3. Backup proinf partition..
a. Press on Readback tab.
b. Press on "Add" button.
c. Double click on the new entry, and chose where you want to save the backup.
d. Select Type: Hex.
Region EMMC_USER
Start Address: 0x80000
Length: 0x300000
e. Press Read Back button " the green arrow "
f. now make sure your phone is turned off,
press and hold the down volume button and plug the USB cable..
keep pressing the volume down button untill the backup process is done.


4. Flash the new proinfo partition:
a. Download the file: proinfo
[ note: you may edit it using hex editor and replace the serial keys from your backup. ]
b. Make sure to turn off your phone and disconnect the USB.
c. In SP flash tool press " ctrl + alt + v ", to enable the advanced mode.
d. from "Window " in menu bar select " Write memory"
e. New tab will be available "Write memory "open the it.
f. Set File path: the downloaded file from above "proinfo_0x80000"
Begin address: 0x80000
Region : EMMC_USER
"by DRAM"
g. click on write memory
h. now as before press and hold volume down button on your phone and plug the USB cable.
i. keep pressing the volume down button untill the flash is done.


5. Unlock the phone!!
a. make sure to enable "OEM unlock" from developer option in your phone.
b. boot your phone to bootloader " fastboot" .
c. from your PC open the "minimal adb tool " or what you have ..
d. type this command :
fastboot oem unlock 5A4CB78CF6711B04
e. done !! your phone will report now and it will do a full factory reset and will delete every thing .. so make sure to have backups


CONGRATS! YOUR PHONE IS UNLOCKED!!!

thank you very much, works on my mya-l11

was sceptical (want to take good care of my precious phone) of course, but it works, and hope i can install twrp now

spread the word

 

[mexamilian]

how does this work with a 17 digit S/N from blackview phones?

Ref:BV9100 M8601 NEEA

 

[metafaniel]

THANKS for the great tutorial, it's a life saver!
I confirm again as said by others: This works with Huawei Y5 MYA-L13.
Greetings.

 

[vasiplesa]

Everything you do with your device, you do at Your own!

make sure to have backups as your phone will format itsekf

At first all the instructions and files are from 4pda forums, I just represent them ! ,, if this is not allowed contact me and I will delete it.


Second, this is for advance users, who already know how to deal with " SP flash tool", not for those who needs help when they fail to follow the instructions. [ I will try to mention every detail I remember tho]

Third, lets unlock it!

To unlock your phone without the unlock key " Huawei stopped providing it ", you have to flash the proinfo partition of another mya-l22 which you know the unlock key for it and then unlock the phone with the known key. so we will use the proinfo and the key of the phone from nice guy posted them in 4pda forums.


1. Download SP flash tool and drivers for our phone and install them.
link [note: there are 3 installer for the driver, I think I used the first one only].

2. Open SP flash tool, then ..
note: these files are in _MAYA_L22 sub-folder of SP flash tool
a. select Download Agent : "MTK_AllInOne_DA.bin"
b. select the scatter file: "MT6737T_Android_scatter.txt"

3. Backup proinf partition..
a. Press on Readback tab.
b. Press on "Add" button.
c. Double click on the new entry, and chose where you want to save the backup.
d. Select Type: Hex.
Region EMMC_USER
Start Address: 0x80000
Length: 0x300000
e. Press Read Back button " the green arrow "
f. now make sure your phone is turned off,
press and hold the down volume button and plug the USB cable..
keep pressing the volume down button untill the backup process is done.


4. Flash the new proinfo partition:
a. Download the file: proinfo
[ note: you may edit it using hex editor and replace the serial keys from your backup. ]
b. Make sure to turn off your phone and disconnect the USB.
c. In SP flash tool press " ctrl + alt + v ", to enable the advanced mode.
d. from "Window " in menu bar select " Write memory"
e. New tab will be available "Write memory "open the it.
f. Set File path: the downloaded file from above "proinfo_0x80000"
Begin address: 0x80000
Region : EMMC_USER
"by DRAM"
g. click on write memory
h. now as before press and hold volume down button on your phone and plug the USB cable.
i. keep pressing the volume down button untill the flash is done.


5. Unlock the phone!!
a. make sure to enable "OEM unlock" from developer option in your phone.
b. boot your phone to bootloader " fastboot" .
c. from your PC open the "minimal adb tool " or what you have ..
d. type this command :
fastboot oem unlock 5A4CB78CF6711B04
e. done !! your phone will report now and it will do a full factory reset and will delete every thing .. so make sure to have backups


CONGRATS! YOUR PHONE IS UNLOCKED!!!

THANKS

 

[Taimoor0544]

Not Worked For Huawei Y5 2017

 

[Im_Awesome]

Any different archives for CUN-L03? Or is the same process?

Tnx

- EDIT
In the process, the Flash Tool SP mark an error when I tried to backup the profinfo file "CHIPE TYPE NOT match!! target efuse value: 0x28000000"