I bought a locked Samsung Galaxy S2 second hand - it is locked to Vodafone.
When I first purchased it worked fine, however yesterday morning it couldn't connect to the mobile network - it kept saying:
Cannot connect at this time, try again later
I have backed up and reformatted my SDCard, as a Mac would read it but when I put it into my SGS2 it kept on saying "Scanning Media" and all the storage values were greyed out.
Is there any way I can fix this issue? I have tried Vodafone's customer services, but they were less than helpful. All they recommended was to change the SIM, reformat, reset the phone and start again, which I have done, including a hard reset -- but the problem remains.
Any ideas what else could be done to get it working again?