Given the age of this hardware, direct manufacturer links are often dead. Your best bets are:
Do you have a specific error code not covered here? Leave a comment below (if republishing) or consult the Badcaps.net forums for hardware-level repair of the Dnie V1502. instalable dnie v1502
: If you enter the wrong PIN three times, you must visit a DNI Renewal Office (Oficina de expedición) to reset it at an update kiosk; this cannot be done online for security reasons. Given the age of this hardware, direct manufacturer