Trusted
# 
I have a Nokia E51. It is not Vodafone branded but comes up with a Vodafone logo on startup. I assume it is a Vodafone NZ phone as it does not have a camera. I purchased it off Trademe.
I have been using it without issue for a couple of months without issue on Vodafone with two different on account sim cards.
Suddenly a week ago it displayed the message Sim Card Registration Failed. This occurs with two different sim cards which work fine in other phones. I took it into Vodafone who told me it needed to be sent to Nokia.
Prior to sending it to Nokia I updated the firmware to the latest version and did a full reset. Same result.
Nokia have just returned the phone and they performed a nokia software firmware update (as I did) and a system test. They advised me to contact my service provider for the sim card registration issue (which I already did).
So, my question is: Could this be a sim card issue or is it a hardware issue? It seems really weird that the phone just seemed to sim lock itself a week ago.
Cheers, Matt.
