[Please help] Building TWRP for FreeYond M5A
[Please help] Building TWRP for FreeYond M5A
23-05-2026, 03:05 AM
hello hovatek forum members!
i have been trying to build a twrp for a unisoc T606 device called "FreeYond M5A" by myself for almost a week now, but its all not going correctly.
the builds succeed in the GitHub action, but when flashing i get an instant softbrick rebooting to recovery. and when i unpack the vendor_boot.img with AIK, i get 3 or 4 "ramdisk" folders (ramdisk, ramdisk00, ramdisk01,ramdisk02) my stock vendor_boot only has one, so something is wrong here. i also tried to sign each image with the public key that vbmeta-sign checks for but no luck. here is my tree. I used twrpdtgen and edited stuff with the help of AI, but it still didn't work (https://github.com/kyros70/android_devic...e_M5A_TWRP)
i am a beginner at this and would like to get some help or advice.
i have the stock firmware of the device as a .pac (https://drive.google.com/file/d/1Zym11ju...sp=sharing)
note : i tried the online builder, bootloop. and Hovatek did give me a TWRP via telegram (thanks Hovatek) and it works but it has bugs, i wanna do this by myself to maybe fix bugs or have some skill in building recoveries
23-05-2026, 11:05 AM
(23-05-2026, 03:05 AM)Kyros70 ...
note : i tried the online builder, bootloop. and Hovatek did give me a TWRP via telegram (thanks Hovatek) and it works but it has bugs, i wanna do this by myself to maybe fix bugs or have some skill in building recoveries
Your main challenge is signing the vendor_boot. Try sign the stock vendor_boot then flash it and observe if it enters stock recovery mode or you get a bootloop
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23-05-2026, 11:53 AM
(23-05-2026, 11:05 AM)hovatek Your main challenge is signing the vendor_boot. Try sign the stock vendor_boot then flash it and observe if it enters stock recovery mode or you get a bootloop
I unpacked, repacked it and signed it with public key that I extracted from it earlier and it still boots normally, vbmeta checks for only sha1. I used that same key to sign my broken builds.
This post was last modified: 23-05-2026, 11:54 AM by Kyros70.
25-05-2026, 10:39 AM
(23-05-2026, 06:41 PM)Kyros70 I just tried again with the automatic builder with flags this time and patch.zip too, it failed.
Work id : LhuKEJ2Y2YWl9wZVgW6F
Leave TWRP aside for now.
I asked you to sign your stock vendor_boot.img the way you signed the TWRP and flash then see if the device accepts it (i.e boots up fine)
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25-05-2026, 11:02 AM
(25-05-2026, 10:39 AM)hovatek(23-05-2026, 06:41 PM)Kyros70 I just tried again with the automatic builder with flags this time and patch.zip too, it failed.
Work id : LhuKEJ2Y2YWl9wZVgW6F
Leave TWRP aside for now.
I asked you to sign your stock vendor_boot.img the way you signed the TWRP and flash then see if the device accepts it (i.e boots up fine)
Hey, I already replied above. It did boot after I signed it.
This post was last modified: 25-05-2026, 11:03 AM by Kyros70.
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