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Shift keys not working. Software Issue?? Compaq - Windows 7


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#1 ndonaldson2912

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Posted 01 August 2014 - 05:18 AM

Hi all,

Have a compaq laptop and both shift keys have stopped working. No physical damage (to my knowledge) has happened. Sticky keys are disabled. No physical damage to keys. Tried USB keyboard and shift keys working fine. Is this a hardware issue? OS is Windows 7.

Any help would be greatly appreciated.

Norman

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#2 ElfBane

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Posted 01 August 2014 - 05:31 AM

The ribbon cable for the KB may have come loose, check that.



#3 TsVk!

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Posted 01 August 2014 - 06:03 AM

If you have a USB keyboard on hand, we could eliminate a physical problem without opening your machine...



#4 ndonaldson2912

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Posted 01 August 2014 - 06:16 AM

Both keys do work when a USB keyboard is used. Does this mean the keyboard is broken?

#5 TsVk!

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Posted 01 August 2014 - 06:19 AM

More likely, the connection has become unsecured.

 

edit: look for a "tear down" video of your laptop (to find out how to take the keyboard off, if you don't know), skip to the keyboard part, and just disconnect and reconnect your keyboard.


Edited by TsVk!, 01 August 2014 - 06:27 AM.


#6 ndonaldson2912

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Posted 01 August 2014 - 06:44 AM

Reseated connection and still no difference. Every key working except shift keys

#7 TsVk!

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Posted 01 August 2014 - 06:49 AM

:mellow: 

 

I would try again... for the off chance.

 

The next step is buying a new keyboard.



#8 TsVk!

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Posted 01 August 2014 - 06:52 AM

maybe, just maybe...

 

run

 

sfc /scannow

 

from the command prompt... it could be a Win driver.

 

(I'm just throwing that out there. That's what I would do.)



#9 ndonaldson2912

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Posted 01 August 2014 - 06:55 AM

I find it strange why it is just the two shift keys not working. Hoping it a software issue. Will try scan now

#10 ndonaldson2912

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Posted 01 August 2014 - 06:58 AM

Scan now function highlights no problems. I think now, barring any other suggestions, I need to buy a new keyboard

#11 jkostar

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Posted 01 August 2014 - 06:59 AM

Since it worked with the usb keyboard, try this software:

 

http://www.passmark.com/products/keytest.htm

 

(Free trial should work fine.)


 

 

 


#12 ndonaldson2912

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Posted 01 August 2014 - 07:00 AM

I have also noticed that Ctrl+Alt+Del function is not working either....

#13 jkostar

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Posted 01 August 2014 - 07:06 AM

You can also rule out any issues associated with your windows  instillation by booting into a different OS like ubuntu and trying to replicate the issue.


 

 

 


#14 TsVk!

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Posted 01 August 2014 - 07:08 AM

Do you have a live disk on hand?

 

if not

 

Please download and burn Puppy Linux on a CD. (this is just the lightest distro I can think of right now)

 

Boot into the live disk...

 

Do your keys work?

 

edit: I was with you jkostar, looking for lighter OS's... good call.


Edited by TsVk!, 01 August 2014 - 07:11 AM.


#15 ndonaldson2912

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Posted 01 August 2014 - 07:16 AM

Guy, going by pass mark it's the keyboard at fault. And on further examination there is some evidence of wear and damage. There are three keys not working so a new keyboard looks like the solution




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