HDMI output not working after updating to bios f.30 as recommended by HP

[Maniebesselaar]

I updated my laptop bios to the newest recommended version F.30 Rev.A .

After the bios update my hdmi output no longer works.

It is like it does not exist. 

I have tried rolling it back to the previous version but the bios just tells me that it cannot roll back.

Any help would be appreciated.

[Maniebesselaar]

Just to save some time . Keep in mind.

Yes , I did try my cable and monitor on another laptop. All fine .

Yes everything was working right up until the moment my laptop rebooted to install the new bios.

Yes everything went well with the bios update (Except of course my HDMI no longer working)

When I plug in my hdmi screen it is not even detected.

Please guys , I work with this laptop and every moment it is not working costs me. I really desperately need your help.

[Echo_Lake · Accepted solution]

@Maniebesselaar
Thank you for posting on the HP Support Community.

Don't worry as I'll be glad to help, I have a few troubleshooting steps we could try to fix the issue:  

Bios Recovery using a keypress combination:

1. Turn off the computer, and then connect the power cord.
2. Press and hold the Windows key and the B key at the same time, and then press and hold the Power button for 2 to 3 seconds.
3. Release the Power button but continue pressing the Windows and B keys. You might hear a series of beeps.

If this recovery method fails, use another working computer to create a BIOS recovery flash drive to install the latest BIOS file.
Click here: https://support.hp.com/us-en/document/ish_3932413-2337994-16 to know more about Recovering the BIOS (Basic Input Output System)

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

[Maniebesselaar]

@ECHO_LAKE

Oh thank you so much!

I was skeptical about this at first but tried anyway .

It worked, my second display (hdmi) is working and the bios version is still on F.30 which means I still have the advantage of the security patches from the new BIOS.

My best guess would be that the procedure you gave me also resets the cmos and that the problem was actually caused by corrupt/incompatible  cmos data? 

Either way this worked, so thank you soooo much. Working with only one screen felt like having an arm tied behind my back (I may be spoilt)!

[Maniebesselaar]

@MettleSphee

I refer to your post here

https://h30434.www3.hp.com/t5/Notebook-Operating-System-and-Recovery/After-F-30-BIOS-Update-damaged-...

I think you may have had the same problem, it was a while ago, but I thought you might want to know what worked for me.

I suspect that the actual bios code is fine but that some cmos data corruption /incompatibility creates the problem. 

I got a cmos reset screen during the process described by echo_lake above, which I suspect solved it. Read the link he included for more detail.

Using the 

[Echo_Lake]

@Maniebesselaar

Thank you for posting back. 

I appreciate your efforts to try and resolve the issue. Glad to hear that the issue is resolved. If you need any help, feel free to reach out to us.

Have a great day!