Unresponsive keyboard at Windows 7 Login

[at1105]

Now this one has me scratching my head. The laptop is a Toshiba L655-S5150 running Windows 7. It boots up to the login screen but the keyboard will not work (except for the number 2 which causes the red shut down button menu to open). Mouse works fine. I tried using a USB keyboard and it does the same thing. I also tried clicking the Ease of Access button to get the onscreen keyboard but the menu doesn't open when clicked. Tried booting to safe mode and I get the same thing. Both keyboards work fine navigating the BIOS but when it hands it off to the OS something goes bad wrong. Assuming it was a driver issue, I went for plan B.

I tried putting in Hiren's BCD to clear the Windows login password so I could at least get in Windows and start working on it. The Hiren's CD menu loads, I hit the down arrow to select an item and as soon as I do, a "0" appears at the top right hand corner of the screen and it becomes unresponsive. Any ideas?

 

[BrentfromZulu]

It sounds like a key is stuck on the keyboard.

If it's not too difficult I would be interested in knowing if the keyboard is removed how the computer responds with just a USB keyboard connected.

 

[buzzcut]

try uninstalling the current keyboard driver and reboot your laptop, the driver should install automatically.

 

[JustInspired]

try uninstalling the current keyboard driver and reboot your laptop, the driver should install automatically.

This doesn't explain or help the fact that there is also a keyboard problem when a live CD ala Hirens etc is used.

I would first completely disconnect the laptop keyboard and boot with just the USB one to try it.

 

[NYJimbo]

If it's not too difficult I would be interested in knowing if the keyboard is removed how the computer responds with just a USB keyboard connected.

Yes, that model is easy to pull the keyboard. Also check under for spills, cable seating, etc.

 

[at1105]

It sounds like a key is stuck on the keyboard.

If it's not too difficult I would be interested in knowing if the keyboard is removed how the computer responds with just a USB keyboard connected.

I removed the keyboard and booted with just the usb keyboard...it worked! Thanks! So it raises the question...stuck key or bad keyboard? To Be Continued....

 

[at1105]

UPDATE: Whilst the keyboard was removed, I checked for spills and everything was clean. Blew out as much debris/dust from the keys as I could. Reinstalled and made sure the ribbon cable was seated correctly. Still doesn't work. I think a new keyboard may be in order here.

 

[NYJimbo]

UPDATE: Whilst the keyboard was removed, I checked for spills and everything was clean. Blew out as much debris/dust from the keys as I could. Reinstalled and made sure the ribbon cable was seated correctly. Still doesn't work. I think a new keyboard may be in order here.

No question about it. Don't waste time looking for a bad key, even if you clean it then it might come back to haunt you later.

Since the connector on the mobo looks clean I really doubt the connector or chips on the board are bad. Get a new keyboard. Just be sure you match the keyboard, not just the laptop model.

 

[BrentfromZulu]

No question about it. Don't waste time looking for a bad key, even if you clean it then it might come back to haunt you later.

Since the connector on the mobo looks clean I really doubt the connector or chips on the board are bad. Get a new keyboard. Just be sure you match the keyboard, not just the laptop model.

My thoughts exactly. I would just purchase a new keyboard (I'm guessing $20)

 

[at1105]

UPDATE: New keyboard arrived. Installed it and it works like a charm. Thanks for the input guys!

 

[BrentfromZulu]

Fantastic! Glad to help