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I upgraded my iphone to ios 5 and now this is happening to me: I open seetings, click on mail,contacts,calendars and it opens for one second and it closes automatically at once. How can I solve this problem?
Basic troubleshooting from the User's Guide is reset, restart, restore (first from backup then as new). Try each of these in order.

Reply something about Last night I updated my iphone to ios5 and now when I go to settings and click on Mail Contacts Calendars it opens for one second and it gets closed. How shall I solve this problem Thanks Sepideh or Post a New Thread