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Re: key board related
You need to disassembly your keyboard in the laptop then install it again.. if the problem happen again you need to replace your keyboard with a new one.. visit youtube website then find for laptop disassembly video..
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Make sure you're pressing the function key and not the letters F and then 4. You may need to press the fn key on your keyboard (if it exists). You could also launch the app called the On-Screen keyboard (included with Windows).
1.u can remove every keys in a laptop keyboard.see any website first to remove the key buttons.
2.then remove the keys which are not funcitioned properly,then clear any dust
3.Replace the key bottons
Thank U sir ... All The Best...
The fn key would convert most abc keys into function keys not make them produce other letters. You may have changed your region settings or your keyboard style. Both can be changed under the control panel under keyboard settings.
The Fn button is like a 'shift' key. Just as you would press <Shift> and a letter to get a capitalized letter, you press <Fn> and a function key at the same time ( <Fn><F1> or <Fn><F2> and so on) to use the secondary function for that key. For example, on one of my laptops, the <F2> key has an icon for 'wireless' (looks like an antenna). If I simply press <F2>, I will activate the function for <F2>, but if I press <Fn> and <F2> at the same time, I will turn on my wiress adapter.
The function keys are software dependant. Try holding alt key down then hit F4. Most programs use F1 to call HELP file. In various programs read the associated help file and it would indicate if the Function keys are used.
Sounds like your num lock has been toggled on by mistake. Look for a key that says NmLK. It will be in the same color blue. That key may also be the scroll lock key(ScrLk) that should solve your problem.