Problems with my K800i

[joery]

I have this phone for months now. But recently, the right, down, 2, 3, 8, 9, power keys are not working anymore.

The funny thing is, when you're playing games like the tennis, those keys are usable.

Also, if I master reset the phone, those keys works fine for some time. Then the phone will restart and then it's not working again.

Firmware is R1KG001 APAC.

Anyone experience this? Thanks.

Edit:
Down and right keys respond too when the phone keys are locked.

[xechan]

hardware problem......same as my k750i.
Take it to service center.

k750i problem: Help plz - Top Sony Forums

[joery]

re-flashed it with same firmware. it works for a while. but it restarted on it's own and it's back to not working again.

[jasmin]

I would take it to service center.

Nice day

[mohdumer]

Hardware Problem. The Carbon In The Belt Has Vanished Which Needs A Replacement. Contact An Expert Near You Or Take It To Service Center.

[joery]

Thanks a lot. Don't know yet where to bring this for repair in Los Angeles area. Got this in the Philippines.