If verification fails on the stored image, reload from TFTP:

: Insert the card, power off the device, and hold Volume Up + Volume Down + Power simultaneously to enter forced update mode.

Connect the device via USB and use the feature.

The “Recovery Image Verify Failed” error on a Huawei S7721U is a security feature, not a bug. It protects the device from loading tampered or incompatible software. By methodically verifying the firmware source, transfer integrity, and hardware health, most cases can be resolved without specialized tools. Always maintain a known-good recovery image and follow Huawei’s recommended recovery workflow to minimize downtime.