Haven't had network all day, it just stopped. Checked General-About-Network and it just says "sim not allowed". I have a 3GS and installed the latest update during the week and I'm on o2. I've had the phone over a year and the same sim. Anyone any ideas?? Is my sim just knackered?? Really annoying.
take sim out
put sim back in
turn back on.
if that doesnt work then do a restore maybe.
not 100% but worth a try.
Is the phone originally from o2 and did ya buy it new or second hand
Needed a new sim.....
worked for me Thank you