Nokia Lumia 520 - Manual (Page 104)

• Reset your phone. This restores the factory settings, and erases all your personal content,
including apps you've purchased and downloaded. On the start screen, swipe down from the top
of the screen, and tap ALL SETTINGS > about > reset your phone.
If your issue remains unsolved, contact your network service provider or Nokia for repair options.
Before sending your phone for repair, always back up your data, as all personal data in your phone
may be deleted.
Tip: If you need to identify your phone, to view the unique IMEI number of the phone, dial
*#06#.
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