Precise location (verified by hardware repair forums):
Power off the phone completely if it is still partially functional. Remove the SIM card tray. jmm-al10 test point
If you want, I can write a longer how-to with step-by-step photos and a parts list — say whether you want "beginner-friendly" (no soldering) or "technician" level (soldering + pogo pins). Precise location (verified by hardware repair forums): Power
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Swap out the micro-USB cable for a shorter, high-quality data cable and use a direct motherboard USB port on the back of the PC.