[Tutorial] 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
15-05-2022, 02:08 PM
(12-05-2022, 09:01 PM)Skorpion06 I have fastboot disabled on my device, also I have some verity_dev_keys.x509 that should be a certificate for verity, can I use it to sign vbmeta and boot and flash them through spd research tool?
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25-07-2022, 07:00 PM
Quote:.
will also work on mtk processor?
This post was last modified: 27-07-2022, 08:48 AM by hovatek.
27-07-2022, 08:51 AM
(25-07-2022, 07:00 PM)achakian0000 will also work on mtk processor?
Not directly but yes, like in the Doogee S88 Pro @ https://www.hovatek.com/forum/thread-35862.html
This post was last modified: 27-07-2022, 08:52 AM by hovatek.
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13-01-2023, 12:58 AM
avbtool.py keys rsa4096_vbmeta.pem vbmeta-sign.img
dextter.pem keys.zip vbmeta-sign-custom.img vbmeta_pad.py
root@localhost ~/android-tools# python vbmeta_pad.py
Traceback (most recent call last):
File "/root/android-tools/vbmeta_pad.py", line 4, in <module>
f = open("vbmeta_custom.img", "rb")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: 'vbmeta_custom.img'
This the error am getting if I run python vbmeta_pad.py
13-01-2023, 03:00 PM
(13-01-2023, 12:58 AM)Kelexine FileNotFoundError: [Errno 2] No such file or directory: 'vbmeta_custom.img'
an obvious mistake at first glance "vbmeta-sign-custom.img"
rename vbmeta-sign-custom.img to vbmeta_custom.img
or edit vbmeta_pad.py lines
f = open("vbmeta_custom.img", "rb") to f = open("vbmeta-sign-custom.img", "rb")
f = open("vbmeta_custom.img", "wb") to f = open("vbmeta-sign-custom.img", "wb")
This post was last modified: 13-01-2023, 09:37 PM by Gargoyle.
15-01-2023, 12:01 PM
(13-01-2023, 03:00 PM)Gargoyle(13-01-2023, 12:58 AM)Kelexine FileNotFoundError: [Errno 2] No such file or directory: 'vbmeta_custom.img'
an obvious mistake at first glance "vbmeta-sign-custom.img"
rename vbmeta-sign-custom.img to vbmeta_custom.img
or edit vbmeta_pad.py lines
f = open("vbmeta_custom.img", "rb") to f = open("vbmeta-sign-custom.img", "rb")
f = open("vbmeta_custom.img", "wb") to f = open("vbmeta-sign-custom.img", "wb")
Ok i already did that in the python script
16-01-2023, 05:44 AM
(13-01-2023, 03:00 PM)Gargoyle(13-01-2023, 12:58 AM)Kelexine FileNotFoundError: [Errno 2] No such file or directory: 'vbmeta_custom.img'
an obvious mistake at first glance "vbmeta-sign-custom.img"
rename vbmeta-sign-custom.img to vbmeta_custom.img
or edit vbmeta_pad.py lines
f = open("vbmeta_custom.img", "rb") to f = open("vbmeta-sign-custom.img", "rb")
f = open("vbmeta_custom.img", "wb") to f = open("vbmeta-sign-custom.img", "wb")
Thanks but I already did that, I just edited the python script to match my vbmeta file
21-02-2023, 10:57 PM
26-02-2023, 05:18 PM
i managed to unlock the bootloader with the identifier tooken from your tutorial with linux mint.
and when i flash a custom recovery and try to enter it i get:
"INFO: LOCK FLAG IS : UNLOCK!!!
WARNING: LOCK FLAG IS : UNLOCK, SKIP VERIFY!!!"
i found this firmware in the internet: Lava_Iris_51_SP7731E_S129_INT_1GB_8GB_171019_8.1.0_MIRA_(by_firmwarefile.com).zip
in the file info they say: Product Board : cm05_64v8 - Board Platform : sp7731e
but it just have vbmeta.img and it does not have vbmeta-sign.img? so how to know if my phone uses the vbmeta with rsa4096 like in your ghid or uses rsa2048?
i used AVBtool for python 3 - the old one for pythen 2.6 did not work with my since i have python 3 on my linux mint
and i have another question:
i have found this file: SP7731E__10__GEN_LA_A_L210_D_V2.1__QP1A.190711.020__sp7731e_1h10(1)
in the file info they say: ZTE Blade L210 - Product Board : sp7731e_1h10 - Board Platform : sp7731e
so is it safe to flash this version from research tool to my phone? this will not cause hard brick? or there are some things i need to know before trying to flash it?
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