Group Version Not Match Hisuite Proxy ❲LIMITED · 2027❳

Identify the exact target firmware build number you intend to install.

Attempting a direct downgrade from HarmonyOS 2.0 to EMUI 9.1 or from EMUI 11 to EMUI 9.1 rarely works. The update mechanism is designed to reject such significant jumps.

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If you input package files that do not match the exact hardware partition on your handset, validation will fail. Verify your regional markers using the dialer code:

If you are trying to downgrade, you must manually specify the target version in the Proxy settings. HiSuite Proxy Ensure the "Target Version" checkbox is ticked. Manually type the version you are trying to install (e.g., 10.1.0.123 Identify the exact target firmware build number you

: You must include all three package URLs—Base, CUST, and Preload—in the proxy settings. Simply ticking the "CUST PKG" and "Preload PKG" boxes after adding their respective links often clears the error.

Collect logs & contact support

Use ADB/manual transfer as workaround