Iphone unlocked, apps no longer work?

I got my Iphone 3g unlocked from O2, but since then none of my apps work. I was thinking I may need to restore the phone but was worries that after the restore the phone may no longer be unlocked (I paid £15, to unlock the phone so don't want to pay again). Does anyone know if this is the case?

Restore it. It should be fine afterwards. Just make sure you have your apps backed up on your computer.

Try resetting it (hold down the lock button and home button at the same time for 10 seconds) but you will need to unlock the sim, its just like turning it back on.
Hope this helps.

The company have done a bodgey job the processor isn't allowing you to open any priate files and your phone doesn't know that. Of corse generally speaking we know you don't have any pirate files but the iphone doesn't know. Go back to o2 and tell them to reboot your phone that the pirate protection is blocking my usage. Don't let them laugh at you go higher and take abuse with you champ.

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