Huawei S7721u Recovery Image Verify Failed Repack 〈UHD〉

Error Message:
Recovery Image Verify Failed

When it occurs:

Repack kernel + rootfs
Concatenate kernel + new rootfs → cat kernel.bin new-rootfs.squashfs > combined.bin huawei s7721u recovery image verify failed repack

Patch header to bypass verify

Flash via bootloader recovery

./huawei_image.py unpack original_recovery.img ./unpacked/ Error Message: Recovery Image Verify Failed When it