Keyboard water damage

[daabear]

I have a Compaq CQ 62 that got water spilled on it  After it got all dried out, it can boot up successfully. However, some keys on the keyboard does not work correctly. Some keys produce the wrong characters, some produce more than one characters at a time. As a result I could not even log in as typing the password produces the wrong words. I hooked up a external keyboard and was able to log in and found everything else works correctly. I ordered a replacement keyboard to replace the original . But the replacement produces the same type error. The external keyboard still works, but I wold rather have laptop's own keyboard working. What else I do at this point?

[KNRK]

Dear Customer,

Welcome and Thank you for posting your query on HP Support Forum

It looks like you are having issues with the Keyboard on your Notebook.

We will surely assist you with this.

Troubleshooting: 

Step 01. Click on the Start Button and go to Control Panel

Step 02. Open the Device Manager and expand the Keyboard from the list

Step 03. Right click on Standard PS/2 Keyboard and click on Uninstall

Note: This driver will get installed again automatically on your Notebook

Step 04. Please turn OFF the Notebook

Step 05. Un-plug the Power/AC Adapter and also remove the Battery too

Step 06. Press and Hold the Power Button of the Notebook for a full minute

Step 07. Now let's re-insert the battery back in and plug back the Power/AC Adapter

Step 08. Start the Notebook and keep tapping F10 Key during the startup to access the BIOS

Step 09. Once you get to the BIOS, Please press F9 or F5 Key[Model specific] to load setup defaults for the BIOS

Step 10. Use the arrow keys to say "YES" and hit enter

Step 11. Now let's press Esc/Escape Key. Save Changes and Exit - Yes

Step 11. Now please wait till the Unit loads the Windows Operating system

If the issue still persists please check and verify if an External Keyboard works fine with your Notebook

Note: Please click on the below shown link to find more troubleshooting steps

http://support.hp.com/us-en/document/c03738933

Hope this helps, for any further queries reply to the post and feel free to join us again

**Click the KUDOS star on left to say Thanks**

Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

Thank You,

K N R K

Although I am an HP employee, I am speaking for myself and not for HP

[daabear]

I went through all the steps to reload the system default BIOS, but the same problem is still there with the onboard keyboard. The external keyboard still works fine. I have 2 onboard keyboards, and I can swap them in and out. They have the exact same problem. For example, left shift key -> 'm', right shift key -> 'u', 'l' key -> ';l', etc. 

[KNRK]

According to the message you have recently posted I would like to confirm that this could be a hardware issue and I strongly recommend you to immediately Contact HP Technical Support over the Phone for further assistance without any delay to get your Notebook diagnosed and serviced by an authorized HP Certified Engineer

You can also Check your warranty Here to verify the warranty status

Hope this helps, for any further queries reply to the post and feel free to join us again

**Click the KUDOS star on left to say Thanks**

Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

Thank You,

K N R K

Although I am an HP employee, I am speaking for myself and not for HP