Forcing a version that does not match can brick the device.
. If you try to jump from EMUI 11 directly to a much older version, the phone may reject the package. How to Fix the Mismatch Verify Device Info *#*#2846579#*#* on your phone's dialer. Background Settings Version Info CUST/Preload Info Ensure the firmware you download from a tool like FirmFinder exactly matches these codes. Add All Three URLs In HiSuite Proxy, enter the URLs for Ensure you check the boxes for "CUST PKG" "Preload PKG" before patching. Use the Correct HiSuite Version group version not match hisuite proxy new
: The Cust or Preas firmware package component belongs to a different regional vendor (e.g., C432 for Europe vs. C10 for Russia). Forcing a version that does not match can brick the device
The developers of HiSuite Proxy added a hidden toggle for exactly this error. How to Fix the Mismatch Verify Device Info
In the HiSuite Proxy interface, ensure you have added the URLs for both CUST and Preload packages and that the boxes for "CUST PKG" and "Preload PKG" are ticked before starting the process. Version and Region Mismatch:
update_full_cust_..._all.zip (The structural UI variant layer)
For advanced Huawei users, HiSuite Proxy is the holy grail. It allows you to bypass official OTA restrictions, install stock recovery (downgrade from HarmonyOS to EMUI), or force-install a specific firmware version. However, in 2025 and 2026, Huawei changed its server structure. The result? Millions of users see the dreaded error.