Huawei S7-721u

The (often referred to as the MediaPad 7 Youth 2) frequently encounters the "Recovery Image Verify Failed" error during firmware repacking or custom flashing due to strict digital signature checks in the bootloader. When you "repack" a recovery image, you are essentially modifying it, which breaks the original security signature and causes the verification failure. Core Problem: Why Repacking Fails

The solution lies in a controlled repacking process that respects the device’s verification requirements. This process unfolds in three distinct phases:

tool to perform a system recovery, which overwrites any corrupted or repacked partitions with official ones. Hardware Check

  • # Copy image to /tmp (via USB stick mounted as /mnt/usb) cp /mnt/usb/repacked_recovery.img /tmp/ # Flash using mtd utility mtd write /tmp/repacked_recovery.img recovery

    Fastboot mode

    Connect your phone and enter (Power + Volume Down while connected).