A recovery image verify failed on a Huawei S7721U is a serious, but solvable, issue. Using the BootROM menu to force a USB-based software upgrade is the most effective method for recovery. Following correct, methodical upgrade procedures is the best way to prevent this issue from occurring.
In the main menu, navigate to the File system submenu or directly to USB update/upgrade (options vary by VRP version). huawei s7721u recovery image verify failed link
Check that the file you are loading is strictly for the . Loading an image intended for the S7700 series (without the U suffix) or a different sub-model can cause verification failures. A recovery image verify failed on a Huawei