Talk:Stuck keys SN

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What is the purpose of this page? Who will use this information, and for what purpose? Apater 23:56, 22 April 2008 (EDT)

It might be a good idea to reference that list post and link to this page from Stuck_keys. Cjl 02:19, 23 April 2008 (EDT)

for those whom wish to further explain thier problem/resolutions


CTRL key randomly on/off
It lites after several seconds without touching any key near it while running keyboard diagnostic test and also many other keys sometime stick and then unstick after pushing same key again in a random testing pattern
To get terminal -xmodmap to reassign the Ctrl Key I had to press and hold the spot between the Tab Key and just above the CTRL key with a PDA Stylus or a toothpick (experiment in the diagnostics test)

Note: it is very humid over here in the Philippines and I have had many keyboards/other including cellphone/TV remotes... fail from corrosion and or mold/fungus even very tiny insects getting under the membrane not to mention the salty(ocean) air from many years @ sea.

--Chief Mike 08:47, 4 May 2008 (EDT) (GSMC)U.S. Navy Retired


Some observations - When using the 'test keyboard' bios tool, holding the stuck key (L-ALT) key down for a couple of seconds and then releasing it, causes it to stay open for approximately 1 sec, before closing (becoming stuck),

Also, there is a point halfway through the action that also causes the key to stay open. This is repeatable when the key is stuck.. which is inconsistant and may be temperature dependent.

Are these observations consistant with the problem as it is described? PaulSchulz


Ctrl key stuck failure occurred after about 100 hours of use. I disassembled the lower half of the XO and peeled back the rubber keytops membrane. At that point, I was a bit nervous about separating the flexible circuit membranes. So I reassembled. Surprisingly, the keyboard now functioned.

About 100 hours of use later, the stuck Ctrl key failure happened again. And disassembly and reassembly "fixed" it again. I should probably note that the left-hand-edge keys all have "wimpy dots", so this is consistent with the failure mechanism postulated. Davewa 18:30, 8 July 2008 (UTC)


In July 2008 the Ctrl key started sticking intermittently after using the XO several hours a day for a couple of months. I noticed that the rubber where the Ctrl Key molding meets the rubber base seemed very thin. To relieve the sticking I would massage the key. About 2 weeks ago (mid- September 2008) the Ctrl key became extremely sticky and massaging would not unstick it. The Ctrl key then ripped around the base and it now acts as a flap. The key has not stuck since. I have purchased a replacement XO keyboard but have to find the time to take apart the XO so I can swap keyboards. Would you like the old keyboard for analysis? Tinker 17:39, 4 October 2008 (UTC)

Left Alt key stuck on; fixed by peel-replace adhesive layer

But main question is, are there other hidden diagnostics? Also, congratulations for a fine Disassembly how-to. Finally, who is Zarro? And what is he doing with those children? Build 656; S/N CSN74701E4F