When the test points are successfully shorted while connecting the phone to a PC, the device is recognized as a "Qualcomm HS-USB QDLoader 9008" device.
It sounds technical. Slightly scary, even. But once you understand what it is — and what it isn’t — the test point becomes one of the most powerful tools in Android repair. redmi 9 test point
Once the device is detected by the PC, you can remove the tweezers/wire. The phone is now in a "coma" state—waiting for data. The screen will remain black. This is normal. When the test points are successfully shorted while