Invalid sim

[Ren]

Hello, my husband is 02 pay monthly, iPhone 6, and for some reason the last couple days it says invalid sim? He hasn’t damaged the phone, done nothing  different to what he usually does, what could be the problem? Obviously it’s causing problems he can’t send text messages or make phone calls 

[Bambino · Accepted solution]

@Ren Sometimes sim cards just stop working for absolutely no reason. If you have an O2 store nearby, call in and they will provide you with a new sim and swap the details for you. Bring identification with you.