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December 11th, 2017 05:00

XPS 9550: Latest Thunderbolt firmware upgrade destroys HDMI port

Hello,

Dell just release a new Thunderbolt firmware 4.26.03.001 ,A07

I installed it, and it seems to have destroyed my external HDMI port.

I tested it with different monitors and cables.

On some monitors the colors are inverted (white goes black). Some monitors don't display anything.

I hope the upgrade caused no hardware defect to the HDMI port.

Unfortunately I cannot find the old Thunderbolt firmware to got back.

Regards

Oliver

Moderator

 • 

351 Posts

December 19th, 2017 05:00

Hi,

For the 9560 follow the same procedure, but use this driver instead www.dell.com/.../driversdetails

6 Posts

December 19th, 2017 09:00

3 Posts

December 19th, 2017 10:00

Oh of course, sorry that seems obvious now.... :)

18 Posts

December 28th, 2017 14:00

does anybody still have installer for A07 firmware? i will be really appreciated if somebody can upload it somewhere and share

5 Posts

December 28th, 2017 16:00

18 Posts

December 29th, 2017 03:00

aha, thank you a lot. this is what i was looking for!

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