samsung galaxy s gt i9003

[jigarmihir123]

My samsung model galaxy S gt-i9003 hav prblem w/ the back key and option menu.some says the prblm is on the sensor oder says nid chnge d touch screen? - The back n option key of my phone is not working.. some says its in the sensor.. n other says i ned to replace the touch screen.. hopin to receive a prompt reply from you guys.. thanks! :

[apple001]

Sent it to service store for checking if you are free.