Warning: This can brick your device if done incorrectly. Only attempt if you are comfortable with command-line tools (Huawei Update Extractor).
Huawei occasionally blocks specific "groups" from being flashed if the security patch level is too far apart.
Contains carrier-specific or regional applications ( update_full_preload_...zip ). group version not match hisuite proxy
: Ensure both "CUST PKG" and "Preload PKG" boxes are ticked in HiSuite Proxy after adding their respective URLs.
: Read your exact CUST number (e.g., C636 ) and PRELOAD version code. Warning: This can brick your device if done incorrectly
Boot your Huawei phone into by holding the Volume Up and Power buttons while the device is connected to a power source.
If you are trying to downgrade your EMUI version, standard packages might reject the installation due to security patch mismatches. In HiSuite Proxy, look for the checkbox. Boot your Huawei phone into by holding the
While this method is generally safe, flashing firmware always carries a risk of data loss or "bricking."
If you're seeing the error while trying to use HiSuite Proxy , don't panic — this is a common issue when the firmware files you've selected don't belong to the same software branch or release group.
Residual cache from previous update attempts can cause HiSuite to reject new firmware strings.