Mixing a Base firmware package from one EMUI version with a Cust or Preload package from another.
Restart both endpoints
Find the exact ROM IDs that match your device's specific version (e.g., C431, C432) by dialing *#*#2846579#*#* on your phone and checking . group version not match hisuite proxy
Residual cache from previous update attempts can cause HiSuite to reject new firmware strings. Mixing a Base firmware package from one EMUI
Avoid intermediate interference
HiSuite Proxy uses port 7777 to communicate. If another application is using this port, it can trigger connection and versioning errors. Avoid intermediate interference HiSuite Proxy uses port 7777
The good news? It’s rarely a hardware issue. It’s almost always a configuration mismatch between the firmware you’ve selected and what the HiSuite client expects. Here is a deep dive into why this happens and how to fix it. What Causes the "Group Version Not Match" Error?