My partner’s FP1 has suddenly stopped being able to make calls or send SMSs. Power is fine, credit is fine, and she can receive both calls and SMSs. Her outgoing calls never connect; her outgoing SMSs never get delivered (she gets a Not Sent flag and I never receive them).
This seems to have started after a rather confused session of taking photos/videos, when some buttons may have got pressed accidentally - we can’t think of anything else.
She has successfully rebooted in Safe Mode, which made no difference at all.