To understand the error, you first need to grasp how Huawei packages its firmware:
| Cause | Solution | |-------|----------| | | Find a FullOTA where all three files share the exact same version (e.g., 10.1.0.123 everywhere). | | Group mismatch (C432 vs C636) | Your phone’s current group (shown in *#*#2846579#*#* → Background settings → Version info) must match the firmware’s group. | | Preload missing | Search for a FullOTA that includes Preload. Avoid “Partial” or “OTA-MF” types. | | HiSuite Proxy out of date | Download the latest release (v1.6.2 or newer). | | HiSuite updated automatically | Uninstall HiSuite, reinstall an older version (e.g., 10.0.0.510) and block its auto-update via proxy settings. |
Or, if connection is impossible: "Device software is too old to connect securely. Please update device software to version X.Y or higher." group+version+not+match+hisuite+proxy+link
If manually selecting Base, CUST, and PRELOAD packages seems daunting, another approach uses the newer Firmware Finder V2 interface to add complete ROMs automatically:
: Ensure the CUST and Preload versions you find on firmware databases (like FirmFinder) match the region code (e.g., C432 for Europe, C636 for Asia) currently on your device. To understand the error, you first need to
In HiSuite Proxy, look for the or OS Type dropdown/checkboxes.
You'll need the following software:
What are you currently on, and what version are you trying to downgrade or upgrade to ?
This opens the Project Menu (also known as the engineering menu). Then navigate to: Avoid “Partial” or “OTA-MF” types
Some advanced tools redirect your phone's built-in eRecovery mode through a custom PC DNS server to download the targeted firmware directly to the phone over Wi-Fi, skipping HiSuite's operating system checks. Share public link
