Why does my Alcatel prepay (text and talk only) suddenly say invalid sim? It does not get used often but today it suddenly says 'invalid sim'.The phone has not had a battery change in fact the back has never been removed in several years.I have not used the phone since before Xmas and it has never been in anyone elses' possession.
Nice try but nope can't be that. My last top up was $100 on 26/6/2017.Just been sorting accounts and found the receipt hence the accuracy. Still got $93 or so on it. The 'Invalid sim' just seems to have happened for no apparent reason. I'll take the phone into the Vodafone shop once it opens again and see if they can sort it. Thanks for the reply.