| Cause | Explanation | |-------|-------------| | Corrupted download | File transfer error or incomplete image. | | Version mismatch | Trying to downgrade to an unsigned or older version. | | Modified repack | User unpacks, changes content (e.g., busybox, scripts), and repacks without resigning. | | Wrong image type | Flashing an image intended for a different Huawei device variant. |
Connect to Wi-Fi; the device will automatically pull the correct, signed recovery and firmware directly from Huawei's servers . Format a different SD card to FAT32 . huawei s7721u recovery image verify failed repack