Laptop Compaq Presario 2700 Keyboard & Mousepad lost at all
I had a problem with the heat sink of my Compaq Presario 2700. Heat sink detached from motherboard. Well I just got 4 screws, push them from outside thru the plastic case under the motherboard and thru some ALREADY made holes to attach them to the heat sink. (Just in case... I didn´t made any holes or breaked or pushed the motherboard) Well at the end PROBLEM SOLVED. The heat sink works great, smoothly and no noise at all.
BUT NOW my keyboard and mousepad doesn´t work AT ALL. Drivers are OK, No problems reported at the Device Manager List. For Windows XP SP2 everythings is OK... BUT the fact is that my keyboard and mousepad doesn´t work at all. Not even from the very very start. I am not even posible to enter BIOS. The only way I can work with the laptop is to plug a USB external Keyboard & Mouse. There was when I discovered that when entering the BIOS (with the external USB keyboard & Mousepad) the BIOS post an ERROR 0222: Keyboard Error. Can anyone help me with this problem please ???
I read somwhere that most motherboards have a third layer of conductors laminated in the middle of board.It could be possible that you are shorting out something there. Take the screws out and try it without the heatsink for a minute or so. Most big DUI stores sell plastic screws in their hardware areas. These will work no problem.
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I assume you are using a version of Windows. If so, you will need to go to the control panel and reset the type of keyboard you are trying to use. This will most likely require loading a new driver for the keyboard. If you got a CD with the keyboard, there should be a driver for it on the CD. If not, you may find a driver on the internet ... try a google search for the name & model of your keyboard.
Since it is a Laptop you can not just go over to the Scroll Bar. Move the arrow from the mouse over to the scroll bar. Hold on the left key below the mousepad. The scroll bar should turn a differnt color. Move the scroll bar up and down with your finger,using the mousepad.
Its possible it is broken. You may want to check your BIOS make sure there isn't some crazy setting that disables the keyboard.
And other that depending on how ambitious you are you could open it up and unplug the keyboard from the laptop and put it back in, but I would only do that as a last ditch effort, or if you are prepared to buy a new keyboard anyway.
Generally, keyboards are the easiest thing to replace on a laptop except for memory.
Usually, there are either screws on the back that have little keyboard symbols next to them. If that is not the case, then you need to find a way to remove the little panel that is directly above the keyboard as the screws are probably under there.
Just a heads-up, doing any of this will void your warranty if you are still under it.
Keyboard is shot. They do that due to the heat laptops generate. I've probably replaced 200 laptop keyboards in the past 5 years.
You can buy one on ebay for about $21.00.