Highlighted
justnishant
1 Nickel

3 e d c Keys not working in Dell Vostro

Hi,
   3 e d c keys have suddenly stopped working on Dell Vostro Laptop. 

1. I have cleaned the keyboard externally. Issue exists

2. Using USB keyboard, the keys work

3. Updated driver for keyboard. Latest driver already installed. Issue still exists. 

Checked the archives of this forum. Only 1 query posted about 4 years ago, and is unresolved. Hence, submitting fresh query. 

Please help. 

Regards,

Nish

0 Kudos
14 Replies
LSUFAN51
5 Rhenium

RE: 3 e d c Keys not working in Dell Vostro

Please list exact model number and version of windows. Example: Dell Vostro 3550, windows 7

If you don't know, type msinfo32 onto the search box to get exact model number and version of windows. In the meantime, run the diagnostic tool to check the hardware on the system by following steps below:

1. Power off system

2. Power on system, quickly tap the F12 key continuously until you see Preparing one time boot menu in the top right corner of the screen. In the boot menu, stroll down to Diagnostic and then click it. Report back any error code.

0 Kudos
LSUFAN51
5 Rhenium

RE: 3 e d c Keys not working in Dell Vostro

If there's a Number Lock Key on the keyboard, I suggest following the steps in link below and see if that will make a difference.

Keyboard Usage and Troubleshooting Guide

EDIT:

0 Kudos
justnishant
1 Nickel

RE: 3 e d c Keys not working in Dell Vostro

No there is no number lock key on the keyboard. Also, the issue is only with 3 e d c keys, if num lock was the issue, it would have been on all keys, not only on 3 e d c keys,

0 Kudos
justnishant
1 Nickel

RE: 3 e d c Keys not working in Dell Vostro

Exact Model is Dell Vostro 2420 running windows 10 home single language.

I also ran the diagnostic as you had suggested above. No errors reported.

0 Kudos
LSUFAN51
5 Rhenium

RE: 3 e d c Keys not working in Dell Vostro

I suggest removing the battery and drain the residual power from the system by following the steps:

1. Power off system

2. Remove all peripherals - Speakers, Printers, Scanners, USB flash drive, external storage devices, External monitor, External keyboard, External mouse and if your computer is attached to a docking station, undock it.

3. Remove AC adapter, battery, and then press "Power On" button for 20 seconds to drain the residual power.

4. Replace battery, adapter, and then power on system. Hopefully keyboard is fix now.

0 Kudos
LSUFAN51
5 Rhenium

RE: 3 e d c Keys not working in Dell Vostro

2. Using USB keyboard, the keys work

If that troubleshooting step didn't work, I'd suggest opening the computer and reseat the Keyboard cable. Please read thoroughly the instructions before reseating keyboard in the link below:

Vostro 2420 Owner's Manual

Note: Please attempt this step only if you're comfortable in opening the computer and handy with any type of tools.

0 Kudos
LSUFAN51
5 Rhenium

RE: 3 e d c Keys not working in Dell Vostro

If you're not comfortable in opening the computer, I suggest you contact Technical Support in the link below:

www.dell.com/.../Contact-Information

0 Kudos
LSUFAN51
5 Rhenium

RE: 3 e d c Keys not working in Dell Vostro

Please watch video in link below to get a better view of the keyboard cable. You could start at 150 mark at video.

https://youtu.be/PMiP7VjViuM

0 Kudos
justnishant
1 Nickel

RE: 3 e d c Keys not working in Dell Vostro

Tried draining out the residual power of the system. It did not fix the issue

0 Kudos