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T480 - Thunderbolt no devices on port 1 after FW and SW upgrade

2019-08-29, 15:06 PM

Hi,

 

I updated the Thunderbolt FW and driver on my T480(SN: PF******) today due to display issiues on my 3rd monitor, but afterwards there are no longer any devices on the Thunderbolt Port 1. And i have it connected to a Thunderbolt 3 workstation dock, Type: 40AN (SN:ZJ******). I updated the FW on this earlier today and it worked fine afterwards (thinkpad_tbt3_gen2_ws_dock_fw_v3164_new). 

 

I disconnected all devices from the TB port before FW update as the message on the screen requested me to do.

There was no errors during the update process that i saw, but afterwards there were no devices on TB port 1 anymore.

And i have tried to install the FW and SW serveral times no, no difference.


FW/SW version info pic is attached from about page on Tbunderbolt sw.

Runing win10 enterprise ver.1709.

Installed SW file: n22ta0aw.exe, Version: 17.4.78.500

Installed FW file: n24th08w.exe, Version: 17.0.0.3-N24TF16W

Installed driver for TB3 docking: thinkpad_tbt3_gen2_ws_dock_driver_10015.zip (https://pcsupport.lenovo.com/us/en/downloads/DS505148)

 

I don't know how to troubleshoot this anymore, so I hope someone here can help me!

 

Admin note; serial numbers edited.

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Re: T480 - Thunderbolt no devices on port 1 after FW and SW upgrade

2019-08-29, 18:20 PM

As a first step I would shutdown, unplug AC, then use a paperclip to press the emergency reset button on bottom of laptop.  See if this can recover the thunderbolt function.

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This helped me too

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Re: T480 - Thunderbolt no devices on port 1 after FW and SW upgrade

2019-08-30, 6:55 AM

I got it working, Thank you so mutch someotherguy!!!

 

I powered down the PC, removed the battery, and puch the emergency reset button for 10sec.

After powering it back up it did not recognice the TB3 WS docking at first. (I may have waited to short time here)

But i powercycled the docking station and after re-connecting it to the PC, it started to work!

 

I am not doing a FW update again, this almost gave me a hearth attack.

 

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