while using my new nokia lumia 730 it automatically pops out n closes ???

[WPCentral Question]

while using games or app it closes off completely ??? why ?? what sort of problem is this ??

 

[worldspy99]

Which apps / games does this happen on?

 

[anon(7900571)]

Strange. Does the app crash or your phone gets you back to your lock screen ?
Its worth to try a soft reset by holding volume down + lock button until your phone vibrates and reboot itself.