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Re: CTRL Buttons Not Working
There is an IC that translates key-presses into a usable datastream and it may be part of the keyboard assembly since many of them come from a few manufacturers.
The spill has either disabled or damaged that chip and unless you are adventurous and want to try removing it and bathing in distilled water, allowing it to dry for several days, you will have to have it replaced.
DIY may not cure the problem anyhow as the chip might have been damaged as mentioned.
This shouldn't cost more than $100 US to replace; the keyboards cost likely under $10 US from the original maker.
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More than likely, someone spilled food or drink in the keyboard. Take the keyboard turn it upside down and shake vigoriously. You'll be suprised of the stuff that comes out. If that doesn't do it, purchase a can of air, and turn the keyboard on it's side or slightly upside down so the stuff can fall out of it, and give it a good blow (with the can of air).
need to pick up the keyboard and make sure the ribbon cable to the mother board is fully seated. if it is. then thetouchpad need to come out and clean it very carefully. the sugar and any sticky substances need to be clean off the machine, around the touchpad.
I hope the drink did not damage the touchpad.(it is heat senstive)
if it still don'e work aft reinstalled it. you need to call dell to get a replacement.
I had this problem for a very long time as well. Turns out this is an encryption issue. It's off-balance. You need to reset the encryption, and here's how:
On the LEFT side of your wireless keyboard press and hold Ctrl+Alt, and press F12, then release all three buttons. Now push the Connect button on your Wireless Receiver, then the connect button on your wireless keyboard. Now press Esc. Try it. See if it works. It did for me.