I have bought a second hand 3gs on O2 which was working fine and since restoring it (which put ios5 on) it now keeps saying no sim and has searching in the top left corner which then says no service once itunes asks for a sim to be inserted to activate?

Question

I bought an iphone 3gs on o2 which was working fine till i restored it (which put ios5 on to it) now it wont activate, it keeps saying on itunes no sim inserted and on the iphone it has searching then says no service! Any ideas what i can do as cant get any further!

Answer 1

Some SIM cards were affected by iOS updates. Either contact O2 to get a replacement SIM or pop into a local phone shop and pick up a replacement SIM.
Once you have your new SIM, O2 have a swap my SIM page on their web site here:
http://swapmysim.o2.co.uk/
Follow the instructions on the O2 page and you should be up and running.
O2 do say it can take up to 24 hrs for SIM to be active, but I found it usually only takes half an hour or so before the new SIM is active.
Hope this helps.