In this tutorial I will show you how to reset to factory settings Microsoft Lumia 650 (Windows 10 mobile).You can use this operation to fix issues like freezing, running slow, to remove a file or virus or to clear the memory space.
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Warning! You do this at your own risk! Make sure your phone battery is fully charged!
Better remove the SIM card and memory SD card from your phone before this operation!
If you reset your phone, all your data may be lost, so it's good to do a full backup before!