Redmi 9 Testpoint

We've all been there. You try to downgrade from MIUI 13 to MIUI 11 to avoid the lag. You attempt to unlock the bootloader, or you flash the wrong ROM via TWRP. Suddenly, your phone is dead. No vibration, no LED light, no fastboot, no recovery. Just a black screen. Your computer plays the "USB disconnect" sound. You are officially .

The (often referred to as the EDL point) is a critical hardware feature used by technicians to unbrick devices, bypass security locks, or flash stock firmware when software-based methods like Fastboot fail.

For safety, many technicians recommend disconnecting the battery cable from the motherboard.

: Many users resort to this when their Mi Account or Google FRP locks them out of a refurbished or used device.

Use a pair of metallic tweezers to touch both testpoints simultaneously.