power button fails to work

[praveenec44]

hi frnds,

    i own a sony ion and the problem with that is (power button),when i want to lock the phone or want to switch off or take a screen shot it dosnt work,but when i want to unlock the phone the power button works i dont no whats goin on with my phone so pls help me with some solutions ASAP ,THANK U

[_alexdon_]

Do you have battery savers,task killers,phone optimizers?Lock screen apps?

[praveenec44]

No,ihave ly hd caller id and one task killer app

[_alexdon_]

Remove the task killer,see how it goes.