Group Version Not Match Hisuite Proxy Site
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.
The error message in HiSuite Proxy0;51b; 0;123; is the digital equivalent of a mismatched key; it occurs when the firmware packages you've selected (Base, CUST, and Preload) don't belong to the same software "family" or are being applied in a way the phone's security protocols won't allow. Here is a story of a user battling this exact error: 0;92;0;a3; 0;baf;0;e0; The Tale of the Stubborn Downgrade group version not match hisuite proxy
Using HiSuite v10 or v10.1 is often more stable for EMUI 10/11 downgrades than v11. Near the end, a different error appeared: "device
(e.g., from EMUI 11 to the immediately prior EMUI 10.1 base) as official HiSuite would have allowed. Quick Checklist Open HiSuite Proxy and enter your Base, CUST, and Preload URLs. "CUST PKG" "Preload PKG" USB Debugging are enabled in your phone's settings. If the error persists, use Debug Logging If the error persists, use Debug Logging