I have had my Sony Xperia Z1 Compact for around two years one of them years it's spent it's life in a draw since I moved to the iPhone. I recently got it out and reset it to give it to a family member the phone works fine but when I insert a sim card, it says 'Sim card inserted restarting device' or something along those lines then after the phone turns on, it says 'No sim - No service' can someone please help. The phone is 100% unlocked from my memory and I have also checked online where they say type #*#7378423#*#* (*#*#service#*#*), then go to service info>simlock. There are 5 numbers, if all of them are 0, then there is no sim lock which is practically my case.
Can someone please help.