: A digital microscope or jeweler's loupe is highly recommended, as the test points on a tablet motherboard are extremely small.
For the Lenovo ThinkPad T580, technicians usually look for the "pinout" of the BIOS chip (often a or similar) to remove supervisor passwords or fix corrupted firmware. Locating the BIOS Chip t580 isp pinout
If your programmer provides unstable voltage, you can sometimes connect only , then power the tablet via its USB port to supply the necessary VCC and VCCQ voltages. T580 BIOS Programming (Lenovo ThinkPad Laptop) : A digital microscope or jeweler's loupe is