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i have a problem of my xperia neo l my left most screen is not working i can not type letters q, a and i cant use the upper case key i haven't drop my phone, i was just charging and after i turned it on and the left most touch screen is not already working
i really need your help guys
thanks 
my father bought this in vietnam but im here from the philippines
test your screen with Service Menu
http://talk.sonymobile.com/t5/Xperia-arc-Xperia-arc-S/Service-Menu/m-p/103180/highlight/true#M10600
thankyou for your reply sir here is the screen shot of my screen test
I can't see the picture, please upload it to box.com and post the link here, it could be a hardware issue, if so you will have to take it to a Sony repair center, you could repair your phone with SUS or PCC and check if that helps
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Repair your phone but it does look like it could be a hardware issue.
thank you for your help sir, hmm, i am just wondering if updating the system software of my phone fix the problem?
it could if its not a hardware issue