10-21-2019 12:23 AM
SOLVED!! I have HP Spectre x360 laptop brand new, 3 weeks old.
HP prompted me to update my BIOS and after I did my thunderbolt port wouldn't work, at first I thought it was my charging dock that went bad. After reading around the internet I tried a suggested solution to rollback to the previous BIOS by holding the windows key + B and the power button thing, which did NOT work for me. After an hour of more reading I found the option to make a BIOS recover disk on a second computer, but when I got to that link (link below) instead of clicking on the option to make a recover disk, I clicked on download the latest version and installed it again--yes, even though it was the BIOS update that originally caused my problem. But it turns out the original update didn't take all the way or it may have gotten corrupted and THAT is what caused my thunderbolt port not to work. Because after I downloaded and installed it again I noticed it took longer and seemed like the first time that screwed my port up was very short: so I'm assuming the first time didn't install correctly or completely because this time it did and as soon as I downloaded and installed it my thunderbolt port now back working.
The entire solution took a few minutes.
10-21-2019 12:34 AM
p.s. you will need to look on the back of your computer - or - go to your "system information" app in your computer and look up your serial number and your product ID aka SKU#. You will need this when you go to the link to download and install the latest BIOS again.