Are you saying that there is not any Thunderbolt device listed in Device Manager -> System Devices?  If so, please reboot and press F1 to enter BIOS setup.  Then go to Security -> I/O Port Access menu, and make sure Thunderbolt is enabled.  If thunderbolt is enabled and still there's not any device showing in Device Manager, I think you might be having a hardware problem.

I can't find a thunderbolt device listed in Device Manager -> System Devices, and it is enabled in the BIOS.

The reason I think this is due to the firmware is because of this post by lenovo:

https://pcsupport.lenovo.com/us/en/solutions/HT508988

where among others, the following two symptoms are listed:

• Intel Thunderbolt controller not visible in the OS/Device Manager
• System battery not charging with a USB-C power adapter connected to the USB-C port.

This is exactly what my problem is, but I can't apply this critical update because the update application thinks I have no controller.

Sounds like you have already experienced the hardware failure that the firmware is intended to prevent.  It may be too late.  The last thing you could try is shutdown the system, unplug AC, and then use a paper clip to press the emergency reset button on the bottom.  This will reset the thunderbolt controller; then plug in AC and boot to Windows, check if thunderbolt controller is in Device Manager now.

Any update on when a utility will be released to update the firmware with the newest 1.x driver installed, or if it will ever be released? As this is strongly recommended by Lenovo, would you recommend we start installing the 17.x driver version so we can use the older firmware utility to do the fw update? Then, whenever the new utility is released we update those with 1.x.. Please advise.

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 wrote:

Any update on when a utility will be released to update the firmware with the newest 1.x driver installed, or if it will ever be released? As this is strongly recommended by Lenovo, would you recommend we start installing the 17.x driver version so we can use the older firmware utility to do the fw update? Then, whenever the new utility is released we update those with 1.x.. Please advise.

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There was supposed to be a tool that would update firmware with the 1.x driver installed.  But this has been delayed repeatedly, and I'm starting to question whether we are capable to release it.  Based on this, I would recommend deploying the 17.x driver instead.  If you have machines that have already deployed 1.x, it's not so simple to "downgrade" to 17.x, but I wrote a script that can do it.  If you decide to try it, I recommend testing it on a test machine first.  The script uninstalls the 1.x driver and related services, and then installs the 17.x driver.

fix_tbt.zip  (download and unzip this, and then run fix_tbt.ps1 as administrator)

Hello I must ask that if Lenovo knows that the DCH 1.xx version makes it impossible to update the TB3 firmware, then why on earth did you just push that driver version to my T480?

I'm still on TB3 FW 14 and the FW update now is impossible? It almost seems that you want us to brick our motherboards?

After the Lenovo Vantage updates on 26/01/2020 (picture below), my T480 is giving the "Thunderbolt application is not in use anymore" error. Everything seems to work at the moment, but reading more into these Thunderbolt problems, I would like to know if there is anything I should be worried about, or any measures I should take. In particular, I do not know how to check my TB firmware version, as I cannot access the Thunderbolt Software, and I cannot find "FwUpdateCmd.exe" on my system.

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 wrote:

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 wrote:

Any update on when a utility will be released to update the firmware with the newest 1.x driver installed, or if it will ever be released? As this is strongly recommended by Lenovo, would you recommend we start installing the 17.x driver version so we can use the older firmware utility to do the fw update? Then, whenever the new utility is released we update those with 1.x.. Please advise.

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There was supposed to be a tool that would update firmware with the 1.x driver installed.  But this has been delayed repeatedly, and I'm starting to question whether we are capable to release it.  Based on this, I would recommend deploying the 17.x driver instead.  If you have machines that have already deployed 1.x, it's not so simple to "downgrade" to 17.x, but I wrote a script that can do it.  If you decide to try it, I recommend testing it on a test machine first.  The script uninstalls the 1.x driver and related services, and then installs the 17.x driver.

 

fix_tbt.zip  (download and unzip this, and then run fix_tbt.ps1 as administrator)

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Hi, I tried this fix on my T480 with 1.41.789.0, but it failed. Here's the output:

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Device to remove: Thunderbolt\(TM\) Controller with version 1.4 and class 4D36E97D-E325-11CE-BFC1-08002BE10318
INF to delete:  C:\Windows\Inf\oem0.inf

Step 1: devcon.exe remove "PCI\VEN_8086&DEV_15BF"
PCI\VEN_8086&DEV_15BF&SUBSYS_11112222&REV_01\227020D2EA00AA0000: Removed
1 device(s) were removed.

Step 2: devcon.exe dp_delete C:\Windows\Inf\oem0.inf
Deleting the specified driver package from the machine failed
because it is in use by a device.
devcon.exe failed.

Step 3: MsiExec.exe /X{FBAB4EAA-497D-4B48-8484-D96CAE92C71A} /quiet

Step 4: sc delete nhi
[SC] DeleteService SUCCESS

Step 5: setup.msi /qn

PC must be rebooted now

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After rebooting, the Thunderbolt device 15BF still appears in Device Manager with driver version 1.41.789.0, but now the Thunderbolt Software error message does not appear on boot, only if I try to run it manually.

At this point I'd just want some way to verify that I have the correct firmware version, I faintly reminder doing some updates when Lenovo announced the critical updates but I did not understand the severity of the problem back then since I have no TB3 devices in use. Here is what "FwUpdateCmd.exe GetCurrentNvmVersion "$(.\FwUpdateCmd.exe EnumControllers)" says:

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Error: 0x20B SDK_NO_CONTROLLERS - No active Thunderbolt(TM) controller found in the system or Thunderbolt(TM) software
is not present in the system. Make sure you have Thunderbolt(TM) software installed.
Then connect Thunderbolt(TM) device and retry.

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could you disconnect from internet and try running fix_tbt.ps1 again?  I'm afraid that Windows Update might be trying to put the driver back at the same time you are trying to remove it by script.  I did see something strange like this when I was writing this script a couple months ago.

As for trying to query the firmware version, FwUpdateCmd.exe is not compatible with the 1.x driver.