Lg K52 Test Point Fixed Site

If a firmware update fails, if you flash the wrong file, or if the device is stuck in a bootloop or shows a black screen (QHSUSB_BULK in Device Manager), the test point is your lifeline. It forces the phone into a mode where you can reflash the entire firmware.

Last updated: 2025. Information based on community-contributed mobile hardware data. Always verify with your specific device board revision. lg k52 test point