I have a4tech 9500h keyboard wireless but three keys are not working

SOURCE: Keys don't work at all

Make sure the wireless is working fine and has good batteries in them. Try reinstalling it and see if all lights go on the keyboard. If not there might be an interferance in the system and the keys are not computing well. Try number lock and caps lock

SOURCE: comfort curve keyboard 2000v1.0, key A does not respond

Mine does the same thing only sometimes the keys work, then hours later they decide to stop working.

It's a pain in the **** but if you take out all the screws, take the top cover off then put it back on, for some reason the keys start working again.

The problem will come back though. I'm considering keeping the screws out so I can just pop it apart whenever the keys stop working again.

SOURCE: Water Damage

I'm on my 4th Microsoft Ergo 4000 keyboard. All the previous 3 of them have been junked by none other than spilt water (not hot and not very cold), thanks to my 3 yr old daughter. I've tried taking the keyboard apart, blow drying and putting it back together. Doesn't seem to work. Junking seems the only option and I'm not pleased to say the least (now that they're at $70 at Best Buy)... I'm astounded that they are so succumbale to split water (leave alone other liquids)... A deliberate flaw to ensure repeat buys?

Milind Shetti

• 829 Answers
• Posted on Mar 08, 2009

SOURCE: How to use the function keys on the wireless keyboard 1.1?

Follow these steps:

1. Run an AHK script. Make sure this script uses the keyboard hook (#InstallKeybdHook).
   
2. Right-click on the tray icon and select Open.
   
3. A window will appear. In the menubar, select View >> Key history and script info
   
4. You will see a list of the last twenty key events (and mouse events, if the mouse hook is installed), including their virtual key numbers and scancodes. Pressing F5 will refresh this list.
   
5. Anything that you can see in this list can be captured and/or reproduced in AutoHotkey. However, not everything can be seen here. So, to test, press the key, F Lock in this case, and then press F5 to refresh the list. If AutoHotkey couldn't see the key, the list will be unchanged except for the F5 key you just pressed. If it could, though, it will be the last key on the list (excluding F5).

SOURCE: microsoft wireless desktop 1000 keyboard problem

not being a smart alek but did you try changing the batteries? and if you did did you try a new set?