Windows 7: dead homekeys, keypad and FN combination of Lenovo B570

zeamann · 10 Mar 2012

hi there,

My son's Lenovo laptop has it homekeys not working in any typing interface, not even in BIOS setup. Some FN key combinations also not working including numbers 1 and 5 of the keypad.

I don't know how this happened or what might have caused it. However, this laptop's display has, for several times now, been having a distorted frozen display while playing games or watching movies leaving no option for access but forced shutdown.

My foremost concern right now is for the keys to work normally again. We now use it with a usb keyboard with no problem but haven't tried it with BIOS and FN combinations.

Please help.

DavidW7ncus · 10 Mar 2012

Can you hook up an external keyboard and see if that works?

zeamann · 12 Mar 2012

please see my initial post, 4th para, second sentence. any other tips please?

alphanumeric · 12 Mar 2012

You could try cleaning the keyboard to make sure there isn't something jammed up under the key. A can of compressed air should blow out the dust bunnies without damaging any keys. Worst case scenario you may have to replace the keyboard and hope its the keyboard thats defective and not the motherboard interface. The canned air would be good for blowing the dust out of the air vents too. That may fix your other problem. You can get the canned air cleaners at Staples, Futureshop, or your local computer shop.

zeamann · 13 Mar 2012

Quote: Originally Posted by alphanumeric

You could try cleaning the keyboard to make sure there isn't something jammed up under the key. A can of compressed air should blow out the dust bunnies without damaging any keys. Worst case scenario you may have to replace the keyboard and hope its the keyboard thats defective and not the motherboard interface. The canned air would be good for blowing the dust out of the air vents too. That may fix your other problem. You can get the canned air cleaners at Staples, Futureshop, or your local computer shop.

i was hoping for something else but you could be right. i was just curious: why of all keys must the HOMEKEYS be affected among other keys? i kinda guessed that it is something to do with BIOS being spoiled or some other software and/or driver issue. in any case, please note that i've already pressed the one-key recovery button to return it to its factory setting but the problem still persist.

as for blowing off dust with a can of compressed air; i will have to google/bing it since we don't get to see different types of computer equipment/tools here on our island. in other words, i will have to make a special order with one of our importers.

thanks anyways and pls keep shooting me.

alphanumeric · 13 Mar 2012

The air dusters I was talking about are something like this.
STAPLES | BUREAU EN GROS
On laptop keyboards, because they are so small, some keys do double or even triple duty depending on what other key you press first. Usually all the number keys would switch not just half of them. Some keys not working in the BIOS also makes me think its a hardware fault not software. It can be a pain when you press one of those special function keys by accident and weird things happen when you type though.

Windows 7: dead homekeys, keypad and FN combination of Lenovo B570

dead homekeys, keypad and FN combination of Lenovo B570 problems?