I was sent a replacement SIM since changing over from PAYG to pay monthly. As I am not in the UK, and unable to return for the time being, I had to get a friend to take my iPhone 6 back to the UK so it could connect to a UK network for activation. My friend brought it back and it still won‘t connect properly to a network (intermittently 1 bar on O2 or Telekom) in Germany where I live, even though Roaming is on. I don‘t get a phone or data connection on the iPhone 6. Interestingly, if I put the SIM in my iPAD, I get full 4 bars and 4G on O2, but data only, no phone (obviously) or messaging/SMS. I have tried the usual turning off and on, airplane mode, resetting network etc.
Any ideas on how I can get the SIM to work in my iPhone 6. Thanks in advance.