After updating an iPad 2 to iOS 5, I lost the ability to do anything contacts-related:
- The "Contacts" app disappears the moment I start it
- Composing an email works until I try to select a "To" address, at which point the compose window disappears
- Opening the "Mail, Contacts & Calendars" section of the Settings causes the whole Settings thing to disappear.
When installing iOS 5, I chose to sync the contacts to iCloud, at which point whatever screen I was using disappeared just like all of the above do.
The only advice I've found so far is "wipe it clean and reinstall". I tried that, but the crash remains. The crash is fixed only if I don't restore the backup.
Is there anything I can try that would not involve me retyping all the contacts and re-configuring all the settings?