Nokia 6630 keypad won't work and will not charge

[adeel786]

Hi everyone,

I have a 6630 with keys problem. left right and the two keys next to them don't work

Can anyone help to repair it?

Thank you

[EdgeCrusher]

Moved to adequate section.

Best regards
Edge

[adampeake]

My first instinct is that the phone has liquid damage. Can you rule this out at all?

Adam

[adeel786]

yes liquid damage and thank you for placing it in the right section. Sorry

[adeel786]

ok for some reason ... now the phone is charging up and the keys are working too but 4 keys (left, right and the keys next to them) are not working

[electrophoretic]

liquid damage is very invasive... it can get everywhere... what you must do is open your phone and use an alcohol based solvent to clean the pcb and the connection between the pcb and the keypad board (UI Board)... post your results!!

G

[adeel786]

Yes, i did that ... but still no good

[adampeake]

My advice would be to take it apart and clean it all again. As my learned friend says it gets everywhere.

I use an ultrasonic bath with meths to clean my pcb's then dry with a hairdryer. Sadly there is no guarantee that this will work as if the phone was on when it got liquid on it something might have shorted out.

Clean it again.....take your time to go everywhere and tell us the results..


Adam

[adeel786]

Phone is now dead. Thanks anyway

[EdgeCrusher]

Maybe some IC was on its way to the grave and well... sooner or later it was going to reach it and eventually it died.

Sometimes happens...

Best regards
Edge

[adeel786]

no .... the phone is alive again .... i just tried to start it up now it starts .... the screen is flickering alot ... and the keys problem is still there ..... the four keys left, right and the two keys beside it don't work ..... someone has told me to check z4400 and z4401 .... how should i check them ?

[adampeake]

I would carefully reflow the whole PCB.

Adam