Note: This is illustrative — actual pads vary by PCB revision. Verify with multimeter/visual traces before connecting.
: Power supply for the eMMC controller (typically 2.8V – 3.3V). VCCQ : Power supply for the I/O signals (typically 1.8V). GND : Ground connection. Key Resources for Diagrams samsung m017f isp pinout extra quality
: Instead of soldering VCC and VCCQ, many technicians prefer to connect the phone via a USB cable to provide power, only soldering DAT0, CMD, CLK, and GND to the ISP box. Note: This is illustrative — actual pads vary
Connecting via ISP allows technicians to perform deep-level maintenance without removing the eMMC chip: only soldering DAT0