Randomly stopped working. May be from slight water damage, only moisture / humidity though. Several keys weren't working yesterday, now its just 3 and 6. Disassembled the phone and cleaned under the keys, no luck. 3 and 6 still do not work. What can I do?
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Re: Keys 3 and 6 do not work
When you remove the main board, clean where the main keypad flex plugs into the motherboard. Clean the end of the flex too.
Also, if you want to try, very very slowly and carefully peel up the switches. This is the white sticker with all the little metal domes under it. You have to remove the metal keypad to do so. If you've already disassembled the phone, you should be fine with that. If you haven't broken it down that far, let me know and i will give you step by step instructions.
Also, if moisture is involved, you may want to take the outer cover off the top 1/2 and clean that upper Flex plug also.
4 T5 torx screws located under the 4 rubber bushing at each corner of the inner LCD screen. Once those screws are removed, the outer cover where the outer display and the camera lens are will pop off. Might be a little firm, but it is just snapped in. That will expose the main flex plug on the left and the camera plug on the right.
Please rate if this was helpful, or like I said, let me know if you need more detailed instructions.
91% rubbing alcohol and a toothbrush are just about the best things to use for this cleaning.
If this level of cleaning doesn't take care of it, you can try replacing the keypad flex, or it may need heatshield removal and sonic cleaning to remove any potential corrosion that may be shorting it out under the switch relay module.
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if that key no longer works but another key with the proper chip in it does then your only real choice is to replace the damaged key. Unfortunately, the waterproofing on these newer keys doesn't always work as well as it should. Even though you took steps to dry the key out the water may have damaged the contacts.
you have to disassemble your laptop for this
1 To disassemble carefully remove the keys with a small screwdriver and place in a
container. DO NOT use excessive force. Remove all the keys and place in a
2 Clean the keyboard with cotton swabs lightly dampened (moisturized) with water.
Replace these often and be sure they are only slightly damp. If they are
too wet the excess water will contaminate the keyboard. Start cleaning. This will clean all water soluble contaminants like
Coca-Cola, coffee, and sugar residue. You must clean each and every key space, inside
and out, this is critical since this is where the key touches and moves.
Now wipe out full keyboard with paper napkins and then place your laptop
in sunlight (3-5 minutes depens on sun) to absorbe the moisture left on
the keys or keyboard.
Now assemble your keyboard again as it is earlier. (QWERTY format : for
that click a photograph and copy it to your desktop so that it will not
be a problem when assembling)
Has the laptop gotten Wet, Or there Maybe excess Humidity there. U can try taking it apart and cleaning the nodes where the keys touch the motherboard/membrane, also the ribbon connector into to the connecters, check and clean.. Clean this area with alcohol and a q-tip GENTLY,let it air dry and re assemble . This may or may not help your problem. because the water/moisture infiltration in the the connectors, can cause these kinds of problems. Good Luck
Sounds like the liquid has acted like a glue. You will need to get a cotton bud and dip it into some clean water. Try and clean the hole again and see if it still playing up. Also restart the computer and retry word to see if the same thing is happening.
You have stuck keys from when you removed to clean. Remove the stuck keys and see if it works OK when you press the rubber cap instead of key The back space one may have a link under it if it is a wide one ensure it is fitted correctly
It sounds like the keypad is worn out. The fact that you can get them to work sometimes by what direction you push on them, tells me that the contacts are not working correctly.
Did you have this problem prior to the fuse blowing or did it start after you replaced the fuse?
I don't believe the fuse blowing is related to the keypad problem. I also don't believe that you have a microprocessor problem because you say that the function buttons work but the number keys don't work right. If the microprocessor was faulty, it would not be able to read any of the keys.
The fact that the number keys are not working doesn't surprise me. When you go to cook something, you will press the number keys several times, while only pressing start or stop once. This is why your number keys have worn out first. These keys have a limited number of cycles (presses) and it sounds like its time for a new keypad.
Please let me know if I can be of further assistance to you.