Digital TV set-top boxes do not recognize smart cards. What's the matter?
Smart card contact is bad, use primary school eraser to wipe metal contact, try again
2, set-top box smart card did not plug in.Solution: take out the smart card and insert it into the slot again.3, the card slot and the motherboard connectionSolution: check whether the slot connection is connected to the motherboard or pull out the reconnection.
The possible reasons why smart cards are not recognized by digital set-top boxes:1 、 the metal part of the set-top box smart card is not in contact with the slot.Solution: take out the smart card and wipe the metal part of the smart card with your thumb (eraser).
