Question about Sony Ericsson K750i Cellular Phone

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The keypad 3, 6 and 9 of my sonyericcson k750i are not functioning....

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If you feel confident and competent enough, try taking your phone apart and giving the internals a good clean, take the white keypad PCB out and clean both it's contacts and the contacts on the phone's mainboard, and clear out any dust. Put the phone back together and see if that's solved the problem. It could also simply be that the keypad connector has worked loose




Key Pressed : Key presses phone appears to see
:
3 : 3 then left soft key
6 : 6 then right soft key
9 : 9 then back
c : c then #
left soft key : 3 then left soft key
right soft key : 6 then right soft key

(All the other keys worked correctly)

As I didn’t know what was causing this I attempted to move all data stored on the phone to the memorystick so I could master reset and possibly reflash, although after this I returned to the homescreen to find all keys had started functioning correctly again,





Key Pressed : Key presses phone appears to see
:
3 : 3 then left soft key
6 : 6 then right soft key
9 : 9 then back
c : c then #
left soft key : 3 then left soft key
right soft key : 6 then right soft key

(All the other keys worked correctly)

As I didn’t know what was causing this I attempted to move all data stored on the phone to the memorystick so I could master reset and possibly reflash, although after this I returned to the homescreen to find all keys had started functioning correctly again,

Posted on Jun 25, 2009

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