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TiesB
Paper Tape
Posts: 7
Registered: ‎04-24-2018
Location: NL
Views: 1,273
Message 11 of 23

Re: Missing Thunderbolt on 720S-14IKB

Well mine is a 720s-13IKB. And this is a screenshot of the thunderbolt software details after a new install of windows.
及時雨
Fanfold Paper
Posts: 13
Registered: ‎02-25-2018
Location: TW
Views: 1,271
Message 12 of 23

Re: Missing Thunderbolt on 720S-14IKB

Ok, my situation is the same as yours.

so all we can do is to plug a thunderbolt 3 device to clarify.

TiesB
Paper Tape
Posts: 7
Registered: ‎04-24-2018
Location: NL
Views: 1,267
Message 13 of 23

Re: Missing Thunderbolt on 720S-14IKB

I don't know for sure, because i don't have a thunderbolt 3 device. I do know, that the screenshot looked different on windows 10 that came with the laptop. I think I'm missing firmware. But it can't be downloaded form the support page.
及時雨
Fanfold Paper
Posts: 13
Registered: ‎02-25-2018
Location: TW
Views: 1,265
Message 14 of 23

Re: Missing Thunderbolt on 720S-14IKB

My thinking is also the same as yours.
There could be a missing firmware for TB3.

I think I can go to the shopping mall and looking for DEMO laptop 720s.
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TiesB
Paper Tape
Posts: 7
Registered: ‎04-24-2018
Location: NL
Views: 1,269
Message 15 of 23

Re: Missing Thunderbolt on 720S-14IKB

Hello all,

 

I have a problem with my Thunderbolt 3. I had to do a clean install of windows 10. I used the built-in function of windows 10. And did a hard reset, so no bloatware survived. After the reset everything worked well, but the thunderbolt software did not install itself, like the rest did.

 

I downloaded the driver and software from the support page for my device. (here: https://pcsupport.lenovo.com/nl/nl/products/laptops-and-netbooks/700-series/720s-13ikb-type-81bv/81b...).

 

But after this it still doesn't work..! I think I'm missing the firmware part.

(Like this for the thinkpad x1 carbon: https://support.lenovo.com/nl/nl/downloads/ds120382)

 

It looks like this:image.pngHow it should look

 

image.pngPrint Screen Thunderbolt Software

I contacted Lenovo support here in The Netherlands but he said I had to do a reset. I know this isn't gonna work, because it'll just reset itself to standard Windows. And then i still don't have the firmware..

Anybody an idea or know where I could maybe get the firmware?

 

 

Mod's Comment: Please do not start multiple posts on same issue as this only splinters the discussion. Instead, keep your current discussion updated with any additional information. This post was merged with an existing discussion.  Thanks !

 

Community Moderator
Community Moderator
Posts: 4,286
Registered: ‎11-18-2012
Location: US
Views: 1,252
Message 16 of 23

Re: Missing Thunderbolt on 720S-14IKB

For your model, on  the download page, the Thunderbolt driver and firmware are on the same page.  The firmware is the first item in the list.   Check here.......

 

https://pcsupport.lenovo.com/us/en/products/LAPTOPS-AND-NETBOOKS/700-SERIES/720S-13IKB-TYPE-81BV/81B...

 

 

Mod's Edit:  Updated Subject line after a merge.

 



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TiesB
Paper Tape
Posts: 7
Registered: ‎04-24-2018
Location: NL
Views: 1,242
Message 17 of 23

Re: Missing Thunderbolt on 720S-14IKB

Hey,

 

Thanks for the reaction! And my apoligies for the double post.
I have tried the above files, but i get an error that I should connect 'the thunderbolt 3 dock'. 
I don't have a thunderbolt 3 dock etc. with me. So i'll try it in a couple of days when I have acces to one. 

Thanks for your help and i'll post something if it is indeed the solution.

及時雨
Fanfold Paper
Posts: 13
Registered: ‎02-25-2018
Location: TW
Views: 1,216
Message 18 of 23

Re: Missing Thunderbolt on 720S-14IKB

Hey! I have get great progress.

 

I get AKiTiO 10Gbps Ethernet Thunderbolt 3 device and test. My 720S-14IKB works good with this device

We all misunderstanding LENOVO because after I connect this device,

all of information about TB3 controller is shown.

Even I remove this TB3 device and resart system still see the controller information.

All figrue is shown below and the problom is solved by myself.01.png

 

02.png

 

 

 

calvol
Punch Card
Posts: 16
Registered: ‎08-03-2018
Location: US
Views: 950
Message 19 of 23

Re: Missing Thunderbolt on 720S-14IKB

Same problem with 720S-14IKB, trying to connect an Apple Thunderbolt display through a TB3-TB2 adaptor. (Running updated Win10 Pro (1709/RS3 with BIOS 6LCN20WW(v1.06 dated 15Mar18), and all Lenovo driver updates).

 

I do not see TB controller listed on the PCI Bus with adaptor plugged in.

 

Is there a newer BIOS or a separate download for TB controller?

 

How do I know if my TB port is even working?

及時雨
Fanfold Paper
Posts: 13
Registered: ‎02-25-2018
Location: TW
Views: 941
Message 20 of 23

Re: Missing Thunderbolt on 720S-14IKB

You have to manually install TB3 software under the directory of downloaded lenovo driver.

I remember is the "source" directory, please check it or make a screenshot here.

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