SPD ResearchDownload/UpgradeDownload tools reject custom files for flashing
SPD ResearchDownload/UpgradeDownload tools reject custom files for flashing
(10-10-2022, 12:20 AM)Gargoyle You need to sign twrp recovery create your own vbmeta.Both guides mention that I need to have bootloader unlocked. I can't unlock it due to lack of OEM's private key
How to use AVBtool and a private key to sign a Unisoc (SPD) image.
https://www.hovatek.com/forum/thread-32674.html
How to create a custom signed vbmeta.img for Unisoc using AVBtool.
https://www.hovatek.com/forum/thread-32664.html
(10-10-2022, 12:59 PM)BergamotUnlocked bootloader is not that necessary, I have rooted two Unisoc devices with locked bootloader, but the OEM key is necessary, if rsa4096_vbmeta.pem doesn't work to sign boot, recovery and vbmeta, I think you won't get any further, the OEM key will certainly not be provided by the manufacturer.(10-10-2022, 12:20 AM)Gargoyle You need to sign twrp recovery create your own vbmeta.Both guides mention that I need to have bootloader unlocked. I can't unlock it due to lack of OEM's private key
How to use AVBtool and a private key to sign a Unisoc (SPD) image.
https://www.hovatek.com/forum/thread-32674.html
How to create a custom signed vbmeta.img for Unisoc using AVBtool.
https://www.hovatek.com/forum/thread-32664.html
(10-10-2022, 09:40 PM)Gargoyle Unlocked bootloader is not that necessary, I have rooted two Unisoc devices with locked bootloader, but the OEM key is necessary, if rsa4096_vbmeta.pem doesn't work to sign boot, recovery and vbmeta, I think you won't get any further, the OEM key will certainly not be provided by the manufacturer.
(12-10-2022, 05:15 PM)hovatek(10-10-2022, 09:40 PM)Gargoyle Unlocked bootloader is not that necessary, I have rooted two Unisoc devices with locked bootloader, but the OEM key is necessary, if rsa4096_vbmeta.pem doesn't work to sign boot, recovery and vbmeta, I think you won't get any further, the OEM key will certainly not be provided by the manufacturer.
I think this would only apply for brands that signed images using the generic keys. Could you share the models?
(13-10-2022, 10:02 AM)Gargoyle Of course, provided that the manufacturer uses generic keys.
My tablet devices:
1) iGET SMART L203 / Unisoc SC9863A
2) iGET SMART L206 / Unisoc UMS512_Tiger T610
No need for an unlocked bootloader.