My phone factory reset it self..help!

[AC Question]

I was texting and all of the sudden my got a message saying my phone was updating it took a king time then asked me to do the setup wizard. Now I lost all my information. What can I do please help! Why would it factory reset??

 

[B. Diddy]

Welcome to Android Central! Which phone? Was it a system update? Even if it was a system update, it shouldn't do a factory reset, so I would wonder about some major firmware or hardware glitch.