You need the exact factory firmware matching your phone model, containing the vmlinux.xml or fastboot.xml file.
Ensure your device is completely powered down with the battery disconnected if possible. Locate the precise testpoint locations on your phone's motherboard. Use physical tweezers to bridge the testpoint to the ground shield, and simultaneously insert the USB cable connected to your PC. huawei flash tools idt 20 hot
What is the or Kirin chipset you are working on? You need the exact factory firmware matching your