RE: XPS 9550: Latest Thunderbolt firmware upgrade destroys HDMI port


We have now removed the Thunderbolt firmware ,A07 from the Support site and replaced it with A06 (link) until we can validate the A07 firmware works correctly.

In the meantime, if you have installed the A07 firmware then if you can roll back to the A06 version using the method below and it should resolve the issues that you all experienced:

Colin H
Dell | Social Outreach Services

I'm based in the UK and available Monday to Friday 9am-5pm GMT