Thunderbold 3 is missing from device manager and cannot get updated(x1 carbon 5th)


I’m using X1 carbon 5th and Thunderbolt ports are not working at all.


So I tried to reinstall TB3 firmware and 

when installing the thunderbolt firmware update utility I receive the following error:


"No active Thunderbolt(TM) controller found in the system or Thunderbolt software is not present in the system. Make sure you have Thunderbolt software installed. Then connet Thunderbolt device and press OK to retry or cancel to abort firmware update process."


Of course, I uninstalled and re-installed the thunderbolt software several times and it did not solve issues.

I also pressed reset button several times and it won’t help.


now the TB3 is missing from device manager and I cannot use my usb-c port including my USB-C dock.

TB3 controller driver is also missing.


Please help..


Ps: I tried this thred ( but due to controller driver is missing, firmware could not be updated.


Green Box



I get a green box in many of my apps, What is it?

How can I get rid of it?




power and volume buttons are not working, and the screen is stucked on "Lenovo powered by andorid"

my phones was forcedly shutdown after taking liquid damage. and then after few days later, i charged up my phone and then it stucks on "lenovo powered by android" screen with no buttons working. how can i fix this, meanwhile i have tried flashing my phone using PC and the phone is not connected to it. i can’t even do system recovery because all buttons doesn’t work.

P1 Gen2 – Keyboard illumination

Keyboard illumination works ok by hitting FN+SPACE.

However, on every reboot illumination is turned off by default so every time the machine reboots i have to hit fn+space to turn it on again.

Is there a way to turn on keyboard illumination immediately upon machine startup? Can’t it just remember somehow whether illumination is on or off and at what level it was last set and always just use that? I couldn’t find anything in BIOS (flashed latest version 1.26).

P1 Gen2 brightness control not working

Just received P1 gen2 a few days ago. Updated BIOS to latest 1.26, switched graphics to Discrete.

Brightness control no longer works in Windows 10 and brightness is set to approx 50% all the time.

Tried with Lenovo nVidia drivers and all available nVidia drivers for T2000, same thing.


What’s going on?

Leave a Reply

Your email address will not be published. Required fields are marked *