Hi, this might help you:
Try the security code 123456 or something like that, this might be just some security thing your phone has to make sure with or without sim it cant just be accessed.
if however this is not something that seems like a solution than is it possible you forgot that your new sim has a new PIN-code?
or that the security code is the PIN-code, which is asked by phones when a PIN-code has been enterd wrong three times?
I hope this is useful, and greets.
I believe the default for the nokia is 12345
137 views
Usually answered in minutes!
×