I have an old Nokia mobile phone that was given to me as the phone I have fell in the toilet. I have a contract with Vodafone but the Nokia has been paid out, contact ended ages ago through Telstra. We I put my vodafone sim card in, it said that the phone is restricted. It gives the option to undo but I need to enter a code. Can anyone please help me? I cant live without a phone? Thanks The Nokia phone is black and silver, flip phone. Not sure what kind but its old.