A high-quality programmer like the RT809H is recommended for ThinkPads because it handles low-voltage chips more reliably.
Connect the wires from the motherboard to your programmer as per the pinout in Part 2. Double-check with your multimeter: t580 isp pinout
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 A high-quality programmer like the RT809H is recommended
An ISP (In-System Programming) pinout allows you to connect a hardware box (like Easy JTAG Plus t580 isp pinout
I can provide specific settings for your software to ensure a stable connection.