This morning I picked up my phone and found that I had the 'No Service' message on the screen. This has happened a few times, usually after it's been left overnight and it's usually fixed by turning on and off aeroplane mode but this morning that didn't work. Tried aeroplane mode a few times and turning it on and off 3 or 4 times and still no joy, also did a soft reset and again it still showed No Service. My gf also has an iPhone 5 and is on the same network, when I checked she had full signal (we have a 3 signal booster so our house now has full signal pretty much everywhere). It found a signal when I was driving to work but only after I turned aeroplane mode on and off... Is anyone else having this issue and do you know if it's software or hardware related?