[Solved] Xiaomi Alioth (POCO F3) Vendor_Boot not boot

[Rofikkernel]

Thanks for your hardwork @cfig , i hope you still work in this project ABIE because it already five years project i see from 2018

I succesfully unpack vendor_boot.img with vbmeta.img following your instruction

Info ROM : MIUI 14 Android 13 Host : Ubuntu 22.04 jammy ABIE version = android 13, june 16 build DTC = using device tree compiler package by ubuntu, if using dtc aosp (1.6.0) it cannot decode YAML Reproduce

• copy Vendor_boot & vbmeta to project folder
• Gradlew unpack
• gradlew pack ( i did not modify or touch anything to test it)
• Fastboot flash vendor_boot_ab vendor_boot.img.signed
• fastboot flash vbmeta_ab vbmeta.img.signed
• Device stuck at POCO logo (not MIUI logo) and restart about 30s (it didnot throw or detected in adb, so cannot see what happen but i think if have i have serial cable i can see what going on i think it failed verify in bootloader or something

Note: i still succesfull boot if only repacked vbmeta im flashing, it fail in if flash repacked vendor_boot.img

screenshot Unpack

Screenshot Pack

i see in some log in repack is

• cfig.Avb - original image vendor_boot.img.signed doesn't have AVB footer
  • avb.blob.AuxBlob - encodePubKey(): No key to encode for algorithm NONE
  • no pubkey in auxBlob

here My vendor_boot.img and vbmeta,img for investigation Alioth.img.zip

[cfig]

Yeah I still work on this project from time to time, as I am not (yet) laid off and still have a chance to work ... For the issue you meet, maybe you can refer to https://github.com/cfig/Android_boot_image_editor/issues/117 Someone found MI used a strange format parameter to pack its image. Maybe you can have a try with that ?

[Rofikkernel]

thank @cfig where that crc64 setting file location

[Rofikkernel]

SOLVED! What cause that error is device-tree-compiler by ubuntu not compatible with miui 14 dtb

• sudo apt purge device-tree-compiler
• git clone latest branch than release version of android boot editor
• ./gradlew unpack (now unpacked vendor_boot without dtb.dts source) -./gradlew pack
• flash new packed files and boot

Workarround for want to modify dtb i am using prebuilt dtc by aosp https://android.googlesource.com/platform/prebuilts/misc/+/refs/heads/android11-release/linux-x86/dtc/ and manualy extract and pack again that dtb