xperia miro problem

[anarchist]

i have a xperia miro and from last few days it's screen is getting locked again and again while using it or showing the screen  of airplane mode and power off etc.and while unlocking the screen it statrts blinking then after some time it is showing menu.

i already restored it once but the problem is still there.i installed norton also to check for the virus.is there anything i can do?

[_alexdon_]

Have you tried a software repair via sony update service?I do not recommend people to use battery savers,task killers or antivirus.