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Terminated
Paper Tape
Posts: 2
Registered: ‎04-08-2019
Location: US
Views: 911
Message 1 of 3

T470 Thunderbolt 3 firmware update rollback

I have a T470 20HD running Windows 10 Pro. Both the operating system and all Lenovo updates have been applied.

 

Attached to this is a Plugable-brand USB3 dual HDMI docking station that's been driving a pair of Dell SE2417HG(HDMI2) screens, a wired keyboard & mouse, and a USB headset.

 

Or did, until I did the Integrated Firmware of Thunderbolt Function 1.0.12.0-N1QTF16W update, at which point it now only drives a single screen. Windows sees both displays but now can't use one. I've tested both displays and they work fine otherwise, and if I unplug one display the dock will "fail over" to the other display without an issue.

Is there a way to roll back this firmware update, or am I basically out of luck?

 

Retired Support Specialist
Posts: 402
Registered: ‎08-02-2018
Location: US
Views: 797
Message 2 of 3

Re: T470 Thunderbolt 3 firmware update rollback

Hello Terminated!

 

Welcome to the Community Forums. 

 

We have found a previous firmware version of the Thunderbolt. You can download it here, https://download.lenovo.com/pccbbs/mobiles/n1qth05w.exe. Try to install it,

 

Regards,

 

 

 

 

 

 

 



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Terminated
Paper Tape
Posts: 2
Registered: ‎04-08-2019
Location: US
Views: 779
Message 3 of 3

Re: T470 Thunderbolt 3 firmware update rollback

This was solved by the dock maker (Pluggable) tech support folks ten days ago.
The solution was to clean off the DisplayLink drivers and install an intel driver update.

See also: https://support.plugable.com/t/lenovo-t470-no-longer-dual-montiors/16851

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