How to create a custom signed vbmeta.img for Unisoc using AVBtool

[Tutorial] How to create a custom signed vbmeta.img for Unisoc using AVBtool

Odysseus
Junior Member

19

20-09-2021, 02:30 AM

#61

I unlocked the bootloader and flashed custom vbmeta but anytime I flash custom recovery I'm stuck at writing recovery any help please

Odysseus
Junior Member

19

20-09-2021, 02:31 AM

#62

I unlocked the bootloader and flashed custom vbmeta but anytime I flash custom recovery I'm stuck at writing recovery any help please

X3non
Recognized Contributor

22,062

20-09-2021, 12:25 PM

#63

(20-09-2021, 02:31 AM)Odysseus I unlocked the bootloader and flashed custom vbmeta but anytime I flash custom recovery I'm stuck at writing recovery any help please

ensure that the custom vbmeta has a new key for recovery partition and also ensure to sign the recovery.img with the same key ; see https://www.hovatek.com/forum/thread-32674.html

lolvatveo
Senior Member

146

22-09-2021, 03:16 PM

#64

I got stuck at step 6, with different vbmeta in the video. Now I don't know what should I do, please guide me more about this step

X3non
Recognized Contributor

22,062

23-09-2021, 09:54 AM

#65

(22-09-2021, 03:16 PM)lolvatveo I got stuck at step 6, with different vbmeta in the video. Now I don't know what should I do, please guide me more about this step

different partitions? if yes then replace the chain partitions and the key_files in the command with what you get from info_image of your stock vbmeta (follow the same order as it is on your stock vbmeta)

lolvatveo
Senior Member

146

24-09-2021, 04:08 PM

#66

(23-09-2021, 09:54 AM)X3non
(22-09-2021, 03:16 PM)lolvatveo I got stuck at step 6, with different vbmeta in the video. Now I don't know what should I do, please guide me more about this step

different partitions? if yes then replace the chain partitions and the key_files in the command with what you get from info_image of your stock vbmeta (follow the same order as it is on your stock vbmeta)

After researching and observing step 6 more closely, I finally knew exactly what I was doing and what I needed to do

Gargoyle
Contributor

494

28-09-2021, 07:29 AM

#67

Hi,
I tried to root the iGET Smart L203
I unlocked the bootloader according to https://www.hovatek.com/forum/thread-32287.html

I made the patch boot via Magisk, after flashing magisk_patched.img the device did not boot, so I tried to replace vbmeta, signed according to https://www.hovatek.com/forum/thread-32664.html

After flashing the stock image, the device as soon as it should, he signed vbmeta again, but with --flag 2, originally --flag 0, since then the device just keeps restarting, I don't even get into recovery mode.

X3non
Recognized Contributor

22,062

28-09-2021, 12:18 PM

#68

(28-09-2021, 07:29 AM)Gargoyle Hi,
I tried to root the iGET Smart L203
I unlocked the bootloader according to https://www.hovatek.com/forum/thread-32287.html

I made the patch boot via Magisk, after flashing magisk_patched.img the device did not boot, so I tried to replace vbmeta, signed according to https://www.hovatek.com/forum/thread-32664.html

After flashing the stock image, the device as soon as it should, he signed vbmeta again, but with --flag 2, originally --flag 0, since then the device just keeps restarting, I don't even get into recovery mode.

flash back stock image to fix your device then create a new thread for this by clicking "ask question" at the top
in the new thread, post info_image of stock vbmeta and command you used to make custom vbmeta

Gargoyle
Contributor

494

28-09-2021, 05:22 PM

#69

(28-09-2021, 12:18 PM)X3non
(28-09-2021, 07:29 AM)Gargoyle Hi,
I tried to root the iGET Smart L203 ....

flash back stock image to fix your device then create a new thread for this by clicking "ask question" at the top
in the new thread, post info_image of stock vbmeta and command you used to make custom vbmeta

Unfortunately, I am not able to boot into recovery mode, fastboot cannot be started, the device will restart immediately.

Only the iGET logo and INFO: LOCK FLAG IS: UNLOCK !!!

Before I uploaded vbmeta, I was able to revive, by disconnecting the battery and then boot into recovery, bite fastboot, but it also doesn't work.
I think it's a brick and will need to be taken to a service center.

X3non
Recognized Contributor

22,062

29-09-2021, 09:17 AM

#70

(28-09-2021, 05:22 PM)Gargoyle Unfortunately, I am not able to boot into recovery mode, fastboot cannot be started, the device will restart immediately.

Only the iGET logo and INFO: LOCK FLAG IS: UNLOCK !!!

Before I uploaded vbmeta, I was able to revive, by disconnecting the battery and then boot into recovery, bite fastboot, but it also doesn't work.
I think it's a brick and will need to be taken to a service center.

either wait till battery drains or manually disassemble and disconnect the battery to power it off then you can flash using research download tool
if you still have any problems then create a new thread for your device issue by clicking "ask question" at the top

This post was last modified: 29-09-2021, 09:20 AM by X3non.

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