A working P55S.1 programming key should flash different colored LEDs when you connect it to your computer (booting sequence). The product is defective if a red LED immediately shows. You can try to… If that doesn't help, you...
A working P55S.1 programming key should flash different colored LEDs when you connect it to your computer (booting sequence). The product is defective if a red LED immediately shows. You can try to… If that doesn't help, you...