If you are downgrading across major Android/EMUI versions, always back up your data. A "Group Version Match" success followed by a bootloop is a common result of not clearing the cache. Conclusion
This error most frequently happens when you attempt to flash only the package while switching between major OS versions (e.g., EMUI 10 to EMUI 11). For these operations, HiSuite requires a full "group" of three packages to validate the installation: Base PKG : The core operating system files. CUST PKG : Customization files specific to your region. group version not match hisuite proxy exclusive
The error means the HiSuite client has performed a checksum or compatibility check and determined that the combination of Base, CUST, and Preload files you provided does not form a valid, matching set for your specific device model. If you are downgrading across major Android/EMUI versions,