Phone has been working perfectly for at least a year, but stopped a few days ago. New SIM sent for but old SIM still works in my last phone. Error message reads ‘’An update is required to use mobile data on this iphone’. Can anyone help please/ Have triedon/off and reinserting SIM without success.
Best answer by mikesue4304
It turns out that my phone had a ‘Baseband Issue’ and this has now been fixed and it is working fine. Apparently the processor lost the signal. The small dark triangle in the top left hand corner of the screen confirmed this.
I hope that helps someone.