Smartphone factory reset on booting
 
                                                
                                                
                                                
                                                
                                            
                                                                                Hi there,
I have a Nokia Lumia 625 phone, yesterday I switched off the phone because the battery was very low, when I booted the phone again, everything stored in the phone's memory was gone, Music files, pictures, and contacts, even my email addresses were all deleted, What could have happened? How can I prevent this from happening again?
 
                                            
                                            
                                            
                                         
		 
 
                                         
                                                         
                                                            







