[GUIDE] [HOWTO] Return to stock for Huawei Watch

[Skin1980]

Hi guys, since the development is started i think that we also need a way to restore the watch to the stock FW.

HOWTO:

- download from the following links the boot, recovery and system image;
- reboot to fastboot and:

fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash system system.img

and then go to recovery and do a wipe data / factory reset.

EDIT:

For some strange reason the system img flash didn't work properly on a device i could test. Here is the workaround:

1- First of all download the TWRP from the other thread and fastboot boot it:

fastboot boot TWRP2.8.7.0-Sturgeon.img

2 - Then push the system.img in the sdcard so:

adb push system.img /sdcard/

3 - Now flash it:

adb shell
dd if=/sdcard/system.img of=/dev/block/platform/msm_sdcc.1/by-name/system

4 - reboot

Link:

https://mega.nz/#!rgRQHRrb!lgQCvqH-qkuqitPRRXfCad29MdmJ6ynaUHJDr0hjeLM
https://mega.nz/#!ahgjxA4R!y8Hb0CBVBRwUr0tA3HeFrrqh0ALAiMyqJu0pLsBsAD8
https://mega.nz/#!2pYVBDpA!wQJT8LDcffk7uxEmrsqna6MKWIODD-FqBO_k4Poml7g

 

[brizey]

What would be really awesome is TWRP.

 

[Skin1980]

What would be really awesome is TWRP.

My build pc is broken and on my macbook i dont have enought free space to build the twrp.

 

[Skin1980]

What would be really awesome is TWRP.

ok i compiled from my daughter's pc.... pls test it http://forum.xda-developers.com/hua...overy-twrp-build-huawei-watch-tester-t3222675

 

[brizey]

ok i compiled from my daughter's pc.... pls test it http://forum.xda-developers.com/hua...overy-twrp-build-huawei-watch-tester-t3222675

Will try to get to it today. I am booted up on your kernel now as a test (just fastboot booted it). Will do the same to test the recovery once I get a chance.


Edit: btw...when I have pulled images before, I had always done something like

cat /dev/mtd/mtd2 > /sdcard/boot.img (or wherever the boot image is mounted).

in an ADB shell. Do these things even have an sdcard location to temporarily store the images? Just curious on how you pulled them.

 

[Skin1980]

Will try to get to it today. I am booted up on your kernel now as a test (just fastboot booted it). Will do the same to test the recovery once I get a chance.

Nice, thank you

 

[Skin1980]

Updated OP

 

[Motawa88]

return from what?

 

[brizey]

return from what?

Having su installed. When you install skin1980's kernel, it uses chainfire's autoroot method, which modifies your system partition. So to make sure OTAs work, this is a way to get back to a clean system image that will pass the hash checks done by the OTA script.

 

[Njzkrish]

I tried this and for some reason every reboot goes straight back to recovery. Did I do something wrong or am I screwed haha. everything seems to work correctly but then just reboots to recovery.

edit:
Now I just get an icon of an android on floor with chest open haha

 

[brizey]

I tried this and for some reason every reboot goes straight back to recovery. Did I do something wrong or am I screwed haha. everything seems to work correctly but then just reboots to recovery.

edit:
Now I just get an icon of an android on floor with chest open haha

That's the stock recovery.

 

[vinny.1967]

restore back to stock

question, did bootloader unlock flash twrp then immediately backup my watch before flash the kernel. if i restore this backup file will it get back to stock?
Thanx

 

[kpcheang2]

question, did bootloader unlock flash twrp then immediately backup my watch before flash the kernel. if i restore this backup file will it get back to stock?
Thanx

If you flash the recovery (twrp) and reboot into twrp to backup then you are backing up the stock boot, system and data.

Flashing the kernel will replace the boot.img only so restoring the twrp backup prior to this will restore your stock boot, system and data. At this stage your recovery is still custom (twrp)

 

[Kingdavid7]

So I want to return to stock to sideload the LCB43B update. However, I'm having issues following the directions listed. The recovery img and boot img flash fine but when I try to flash the system img, I get:

target reported max download size of 63963136 bytes
Invalid sparse file format at header magi

So I follow the steps to boot into twrp and it boots fine but adb push and shell gives error no device found. I unlocked my bootloader and flashed your kernel so idk if that is causing the errors.

 

[Skin1980]

So I want to return to stock to sideload the LCB43B update. However, I'm having issues following the directions listed. The recovery img and boot img flash fine but when I try to flash the system img, I get:

target reported max download size of 63963136 bytes
Invalid sparse file format at header magi

So I follow the steps to boot into twrp and it boots fine but adb push and shell gives error no device found. I unlocked my bootloader and flashed your kernel so idk if that is causing the errors.

You should check your drivers

 

[Kingdavid7]

You should check your drivers

Nvm I got it

 

[naymenos]

You should check your drivers

Hi,

I have the same problem.... As it has solved ?

 

[Skin1980]

I'm uploading a zip file that can be flashed with twrp. It might restore stock system, boot and recovery so, after the flash, you should only relock bootloader anda you are good to go.

It's untested so only people that know how to restore the watch should try it.

Like i said, i dont own this watch so i can't test for you. Sorry.

https://mega.nz/#!vkBSCR4C!hZzbAMe7PZPBG88Bfm3mBi6hAfDHCpLMArIwpY6xhHc

 

[juliano76]

Does anybody could be able to tall me what is the reason to root this watch? What are the benefits?

Sent from my SM-N920C using XDA Free mobile app

 

[erikiksaz]

I'm uploading a zip file that can be flashed with twrp. It might restore stock system, boot and recovery so, after the flash, you should only relock bootloader anda you are good to go.

It's untested so only people that know how to restore the watch should try it.

Like i said, i dont own this watch so i can't test for you. Sorry.

https://mega.nz/#!vkBSCR4C!hZzbAMe7PZPBG88Bfm3mBi6hAfDHCpLMArIwpY6xhHc

Has anyone thus far tried to relock the bootloader? I usually don't unlock any of my device until using them for a couple weeks to make sure I don't have a lemon. I'm curious if it's unlocked if Huawei would check, or if their system would show it was being previously unlocked.