My sony xperia U qr code and barcode scanner only show half of the camera after update to 4.04

[Azfar]

i cannot even scan qr code or barcode it was fine back then

[Uliwooly]

uninstall and reinstall the QR code reader apps 

[Azfar]

i have done that....nothing scanning program works

[Uliwooly]

Could you elaborate on your issue? do you have a taskiller, task manager? is your data on?

[Azfar]

when i open the scanning apps the camera only appear 1/3 of the screen....i am using clean master is that task killer

[_alexdon_]

Remove any taskkillers,they are not useful.