: If you are downgrading, you cannot jump multiple versions at once. You must revert to the version immediately prior (e.g., from .211 to .210) in incremental steps. Force Auth Bridge : If your phone is a rebranded or Chinese model, tick the "Force Auth Bridge"
To resolve this error, users must ensure that the firmware metadata entered into HiSuite Proxy perfectly mirrors the device's requirements: group version not match hisuite proxy work
: Use *#*#2846579#*#* on your phone to check your current CUST and Preload info. If the new files don't match your device's region (e.g., C432 for Europe), the "group version" check will fail. Troubleshooting Tips : If you are downgrading, you cannot jump
Huawei often blocks "jumping" over major versions. You may need to downgrade to an earlier build of your current EMUI version first, then to the target version (e.g., 11.0.0.260 → 11.0.0.151 → 10.1). If the new files don't match your device's region (e
The error usually happens because the fullota file name/version in the proxy tool does not match the transition path required for your current firmware.
: If moving between major EMUI versions, downgrade build-by-build (e.g., .211 → .210 → .209) rather than skipping ahead.
For a working proxy setup, you need: