This error typically occurs when using HiSuite Proxy to downgrade or change the firmware on a Huawei device because the

"Force Auth Bridge."

Near the end, a different error appeared: "device not supported." Alex remembered a hidden weapon in the Proxy's arsenal: the By ticking this box, the Proxy bypasses certain official authentication checks that usually block unofficial version paths.

What is HiSuite Proxy?

: Newer EMUI versions include a security bridge that prevents unauthorized firmware installs. If the proxy can't trick the phone into thinking the update is "official," the group version check fails. How to Fix It Match Your CUST/PRELOAD *#*#2846579#*#* on your phone, go to Network Information Query Vendor Country Info

  • Uninstall HiSuite via Settings → Apps.
  • Manually delete leftover HiSuite folders: Program Files\HiSuite, %APPDATA%\HiSuite, %LOCALAPPDATA%\HiSuite, ProgramData\HiSuite.
  • Reboot.
  • Download the official latest HiSuite installer for your OS and install as Administrator.

Conclusion