Use a soft cloth or a tiny amount of rubbing alcohol to clean the gold pins on the back of the card.
Try a hard reset to see if the unit can re-attempt the read process: Press and hold the button for at least 5 seconds. tns510 program cannot be read better
Elias flipped through the yellowed pages. He found the section on I/O Errors. Most of it was useless—telling him to check cables or clean the heads. But then, on page 402, in a handwritten note scribbled in the margin by a previous technician, he saw it. Use a soft cloth or a tiny amount