If the security patch is too recent, the only reliable way to use old ADB tools is to downgrade the firmware to a version released in early 2018.
Overcoming the "ADB Tool Patched" Issue on Huawei 2018 Devices
In the "ProjectMenu" that appears, navigate to > USB Port Settings . Select Google Mode .
This tool uses a "Software Testpoint" method for HiSilicon-based Huawei devices, which can force the device into a "Factory Mode" (HUAWEI USB COM 1.0) to bypass security patches entirely. 3. The Downgrade Strategy
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