: Use a pair of metal tweezers to touch both pins simultaneously.

To bridge the test point to the ground.

The LG K52 (model LM-K520) uses a chipset. To access low-level flashing modes or bypass FRP (Factory Reset Protection), technicians use a "test point" to force the device into BROM (Boot ROM) mode . Test Point Location and Procedure

: Tools like Unlock Tool and DFT PRO utilize this mode to reset the Factory Reset Protection (FRP) in a "one-click" process.

To reach the test point, you must partially disassemble the device: : Mandatory before prying the back.

A test point is not a button or a software command. It is a physical hardware feature on the LG K52’s main circuit board. In normal operation, these points are isolated. However, by creating a temporary electrical short between a specific test point and ground (often using tweezers or a wire), you force the phone’s processor (Qualcomm Snapdragon) to skip its normal boot sequence and enter a factory recovery state.

To find the test point, you must carefully remove the back cover and the protective metal shielding over the motherboard. Key Connection Points: DAT0 (Data 0) CMD (Command) VCC & VCCQ (Usually 1.8V and 2.8V/3.3V) GND (Ground)