At least 50% battery capacity to prevent unexpected shutdowns mid-process.
Switch your phone to Fastboot mode (usually by holding Volume Down while connecting to USB) or use a hardware test point if required for your specific model. Download Huawei FRP Eraser
The best tool for you will depend on your technical skill level, your device model and Android version, and whether you are willing to pay for a professional service. Here is a curated list of some of the most popular and effective tools available. At least 50% battery capacity to prevent unexpected