Same problem with my 52 plate MICRA. Following fitting of new battery, two months ago, I cannot now re-enter the valid security code, although I have also tried waiting for over an hour, on three separate occasions. Nissan, of course, would like to sell me a new radio (£200(+), inclusive of fitting charge....can you believe it?), this is driving me insane. Any useful suggestion will be gratefully received. Thanks in advance.
mjan1802, August 2010