During power-on, press to enter the BootROM interface. Then run:
I can give more specific commands.
: If software fixes fail, it may be a hardware issue (like internal memory damage or a failing battery), and you should check the Huawei Support Global page for local service options. huawei s7721u recovery image verify failed link
: Even minor changes to system files can trigger this error on newer EMUI versions. Immediate Recovery Steps Enter eRecovery Mode Connect your device to a computer via USB. buttons simultaneously for about 3 seconds. In the menu that appears, select Download latest version and recovery
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: If you attempted to install a custom recovery (like TWRP) or a custom ROM, the internal verification check (verified boot) will fail because the digital signature does not match Huawei's official key. Tampered System Files
This guide outlines the common causes of this error and provides step-by-step solutions to resolve it. During power-on, press to enter the BootROM interface
setenv verify n saveenv reset