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To perform an In-System Programming (ISP) repair, you must solder fine wires to these specific points on the motherboard: : The primary data line. : Command signal line. : Clock signal line (often near a resistor). VCC (2.8V) : Core power supply. VCCQ (1.8V) : I/O power supply. : Ground (can be any large metal shield on the board). Technician Notes for LG K41S : The LG K41S uses a eMMC memory chip. The "Chip-Off" Reality

ISP requires micro-soldering or pogo pins. You must identify CLK (clock) , CMD (command) , D0 (data line 0) , and GND on the board.

Bypassing Google Factory Reset Protection when USB debugging or standard methods fail.

Many technicians skip soldering VCC/VCCQ and instead connect the phone to a USB charger or battery during the process to provide power. General Guide for ISP Connection Disassembly

If you are trying to bypass FRP or repair a bricked device, consider these alternatives first: Software Bypass (No PC) FRP issues