[GUIDE] Unbrick your BLN-L24 and other variants after rollback to EMUI 4.1

[Dazed No More]

The process here will work on all variants of 6X but you must use the Huawei Update Extractor Tool to get the necessary images from your devices initial firmware update.app. I have provided the images only for the BLN-L24 variant for which initial firmware is B110. Due to variants having different firmware the BXXX for the rollback might not be the same but the process is

When you attempt to rollback from Nougat/5.0 (B360) to MM/4.1 stock B110 firmware with successful updates using the dload method there is a good chance your phone will be bricked and fail to boot . The first update/downgrade from B360 firmware to B300 will boot the phone but when you do the second update from B300 to B110 firmware the phone will stay on the honor screen. This happened to me and after flashing firmware numerous times and using ADB to flash boot.img the phone was still not working but I was able to recover and get it working again thanks to the Huawei_Multi-Tool_by_Team_MT_v7.1.
Download Images and put them in the Unbrick folder of the Huawei Multi Tool.

System.img
Boot.img
Cust.img
Recovery.img

1. Put phone in fastboot by holding Vol - and connecting usb to computer

2. Unlock bootloader using command fastboot oem unlock xxxxxxxxxxxxxxx where x is your 16 digit unlock code

3. After automatic data reset put phone in fastboot again

4. Start Multi Tool and hit enter to get to main menu

5. Press U for unbrick and hit enter

6. Press 2 and hit enter to start the process

Downgrading from Nougat to MM will relock your bootloader so you must unlock it in order for the multitool to flash the files to unbrick your device. Once unbricked if you relock the bootloader your device will be factory fresh with initial firmware.

Credit to: Team MT for the multi tool and Update Extractor Tool


If this helped you give me a thanks!

 

[McRoberts]

No luck for me had to return my phone and get a replacement

---------- Post added at 01:16 AM ---------- Previous post was at 01:14 AM ----------

No luck for me had to return my phone and get a replacement

At least your method is not just the dload method it does not always work. I know. Thank you. You did great on the method.

 

[Dazed No More]

No luck for me had to return my phone and get a replacement

---------- Post added at 01:16 AM ---------- Previous post was at 01:14 AM ----------


At least your method is not just the dload method it does not always work. I know. Thank you. You did great on the method.

Thank you. So you have another 6X now?

 

[McRoberts]

Yes I got today so I'm taking my time and reading a lil more. It's such a defeat taking that phone back it's my first real brick.

 

[xSpartacusx]

can i download the recovery img and then flash that using adb to remove twrp and then *try* to restore stock firmware? like.. will my BLN-L24 honor 6x accept that recovery img there?


i used the twrp app to back up my recovery and boot imgs but idk where they were backedup to and where ever they are, if i still have them.. i dont know how to restore them

 

[PalakMi]

can i download the recovery img and then flash that using adb to remove twrp and then *try* to restore stock firmware? like.. will my BLN-L24 honor 6x accept that recovery img there?


i used the twrp app to back up my recovery and boot imgs but idk where they were backedup to and where ever they are, if i still have them.. i dont know how to restore them

Look in a folder named TWRP (on your device's storage)

 

[wilmesg]

can you repost system.img, it doesn't seem to be available anymore. Thanks.

 

[neilc300]

System. img link is error 404

Hi I wanted to take a shot and see if anyone is still on this thread that may have and is willing to help me out and relink the system.img for the initial release FW for the BLN-L24, any help would be great thanks in advance!

 

[wilmesg]

System.img
Boot.img
Cust.img
Recovery.img



Any chance someone has the System.img file and can reupload?

Thanks,
Greg