NokiaLumia 635Mobile phoneResetting to factory settings
* Important: Resetting the mobile phone will delete all saved data and settings. Some problems may be resolved by simply restarting the telephone. Another possible solution is to install a Software-Update.
* Recommended: Save your data using Zune, before resetting your Nokia Lumia 635.
* The following steps contain instructions on how to reset your Nokia Lumia 635.