vB Easy Archive - 5310 Keypad Troubles

Pages: 1

5310 Keypad Troubles
(Click here to view the original thread with full colors/images)

Posted by: fubes2000

I'm repairing a Nokia 5310 for a friend, and I've narrowed down what seems to be causing it, but I can't even fathom why it's happening. The problem is that when the phone is fully assembled the 4, 5, and 6 buttons do not work. However, when the faceplate [flimsy surround with 3 media buttons] is removed, or even just pried up a fraction of a millimeter with a fingernail, the buttons work perfectly.

If anyone has any suggestions, or can direct me with some further diagnostic I would be most appreciative.

I've been following the guide below to disassemble the phone [I had thought the keypad/screen cover needed replacing] which has decent images, but I've got a decent macro lens in case a detail shot is necessary.
http://www.crackedlcdrepair.com/rep...n-a-nokia-5310/

TIA

Posted by: fubes2000

Sorry to bump the topic, but I haven't had any luck finding another soultion out there in the wilds of the internets. Any tips would be much appreciated.

Just to note, as I seem to have left it out of the original message, I have fully disassembled the phone and checked the connector from the keypad to the mainboard to be sure nothing is gumming up the connection. I found that everything was working fine and in the process of reassembling/testing the phone [ie. put one piece back, test, another piece, test, etc] it was only after putting on the outer faceplate surround that the problem with the keypad reappeared.

TIA

Posted by: browniestick

Anyone have any idea about this? I'm thinking about buying one on ebay that has a similar problem and just replacing the keypad or flex membrane underneath but I don't know for sure that either of those is the problem. And obviously I don't want to waste my money on something I can't fix.