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N91 keypad no 2,3,7,8 not working

How much the keypad ic will cost

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Get in touch with the nearest Nokia Care. They will tell how much and will replace it too.

Posted on Aug 01, 2009

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Posted on Jan 02, 2017

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Nokia n 91 keypad not working


Possible fault in the mother board. Open set and Use a dryer to take offf any signs of moisture or condensation of sweat within.
There can be logging into the plated through holes of the double sided board losing contact.
If after cleaning and fiitting back there is no result, I am afraid the fault can be the mother board.

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Some of the touchpads are not working.


There are three possible points of failure; the keypad itself (of course), the connecting cable from the keypad to the board with the electronics on it, and finally the integrated circuit that decodes keypresses.
You might be able to check two of these with any multimeter; the keypad for contact failure, the cable for continuity.
The IC decoder could be somewhat measured if you have the part number to find a pinout for it.
IF the IC has failed, it may not be manually replaceable: in other words it would have to be replaced.
In my experience, the board will cost 1/3- to 1/2 the cost of a new microwave since the manufacturers are not really interested in seeing their products repaired at all.

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hey there, please flash your cell or take it to a cell repair shop and they will do it for you no need for screw drivers only cable for that prob.

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The only solution for that problem is to send your phone to your Local Nokia Service Centre.

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u should change the key pad or change the panel

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please try to replace the keypad and while repalcing let the phone dry in a place free from moisture for an hour

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