I have an old iPhone 4 that has been sitting unused since I got my new phone - it has now sold and I have to clean it out so it's ready for the next person.
Here's the problem:
- The wifi doesn't work and the phone's inactivated (so I can't get online).
- It is asking for a restrictions passcode I don't ever remember setting.
I tried the default (0000) but no luck. What can I do to get this phone back to factory settings?