When standard developer settings won't stick, many 2018 Huawei firmwares still have a hidden background diagnostic menu that can force the USB mode into a state compatible with ADB. Open your phone's . Enter the secret code: *#*#2846579#*#* .
Enabling the on Huawei devices from 2018 (like the P20, Mate 10, or Y7 series) became significantly harder after security patches blocked common one-click "ADB Enable" tools. These updates specifically patched the "Manufacture Mode" and various MTP-based exploits used by technicians to bypass FRP (Factory Reset Protection) or perform deep system modifications. open adb huawei 2018 tool patched
A widely used tool that can often trigger ADB even on 2018 patched firmwares via the MTP tab. When standard developer settings won't stick, many 2018