nookia 6230 key problem

[de brain box]

nokia 6230 key * 0 # are not working, also on key can on but can't off, pls. what is d way out. it is water damaged. Thannks

[puneet14884]

clean pcb properly....replace both glass ic(one on back & other on front) ........post result

[de brain box]

Thanks , from past experience, i find it difficult to replase d glass ic, can u please give step by step details of how to replase it.

[MUHAMMED VKL]

the replacing is simple ,just remove & replace in normal heat did you check with another keypad board?

[Jeffyoh88]

try change keypad ic
will help u
good luck

[.:KHALIFA:.]

Originally Posted by de brain box

Thanks , from past experience, i find it difficult to replase d glass ic, can u please give step by step details of how to replase it.

man its simple... if u find difficult practice it on a dead board

[Dave.W]

first thing is to try with new keypad board (the part with white dome sheet stuck on it).

you can peel back the dome sheet and clean with toothbrush and cleaning solution if there is sign of oxidation.

other than this then you can try to replace the two ESD filters as said above.

very easy to replace, just need good heat and flow, gel flux, small tweezers and steady hands!

[de brain box]

Thank u all for your advice, but u all knows that d legs are led with too hot it met &n bridge together which makes it difficult to fix, can u say d level of d heat to be apply on d ic please.