Xperia Z2 :: Freezing / Crashing And Rebooting

So recently i bought a Xperia Z2, and it was fine but after 10 days, i turn it off and when i turned it on it start to Freezing, Crashing, lagging...

The Album can't be open because if u do it freezes and crash, sometimes even make the phone restart and you can't acess any content besides the config.

Netflix have some weird lags too, and sometimes when i receive i call, the led blinks, the smartband vibrates, but the phone freezes, and restart.

Sometimes the Camera app and File Commander crashes too. But sometimes, it starts fine, and if u don't reboot or turn it off, will work normally
 
i already tried to reset to the factory (In the Phone and by the Computer), remove the SD, clear cache from the apps, uninstall the antivirus, install the antivirus, uninstall all apps, boot in safemode...
 
To me, really sounds like a software problem... Sometimes it doesn't recognize by the PC when i connect, it only recognize if is working normally.