The error string typically occurs when using modified versions of HiSuite (Huawei's PC suite) or third-party tools (commonly known as "Proxy Tools" or "HiSuite Proxy Injectors") to force a firmware downgrade or cross-region update on Huawei/Honor devices.
To resolve this issue, you must ensure you have gathered the correct firmware URLs and configured the HiSuite Proxy application correctly. Step 1: Verify Your Exact Phone Details The error string typically occurs when using modified
: You often need three specific packages for a successful update or downgrade: Base , CUST , and Preload . Find the CUST and Preload URLs for your specific model.