ThinkPad Thunderbolt 3 failure: What's happening, why it's happening, and how to fix it

[URL]https://www.notebookcheck.net/ThinkPad-Thunderbolt-3-failure-What-s-happening-why-it-s-happening-and-how-to-fix-it.451207.0.html[/URL]
[URL]https://nadim.computer/posts/2018-10-26-thinkpad.html[/URL]
[URL]https://pcsupport.lenovo.com/ca/en/solutions/ht508988[/URL]


ThinkPad Thunderbolt 3 Firmware attached,extracted from lenovo updates,plus links to driver downloads.Some models have 2 different firmwares, TBT.bin and AssistTBT.bin for the models that support or...

Info for error 2202 LenovoThinkPad models and type

Extract from ThinkPad Maintenance Utilities Configuration File
plnsrv.ini Version 1.01


Some information that may be useful




There must also be missing models, add them to the list if you know of any.

[CODE]
brand name
20B1=ThinkPad Edge E445
20B2=ThinkPad Edge E545
20BC=ThinkPad Edge E145
20BM=ThinkPad X140e
20BL=ThinkPad X140e
20A3=ThinkPad X230s
20AH=ThinkPad X230s
20AK=ThinkPad X240s
20AJ=ThinkPad...

This specification for the Lenovo ThinkPad X1 Tablet (3rd Gen) Hybrid (2-in-1) can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the X1 Tablet (3rd Gen) boardview and X1 Tablet (3rd Gen) schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification,...

Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

@trunguntilyou
This is the list I use, seems like it contains most of the models compatible with the DXE driver patch solution, if it's not in the list, most likely the DXE driver patch won't work, specially if BIOS is 32MB:

[CODE]ThinkPad 13 (20GJ, 20GK, 20J1, 20J2)
ThinkPad 25 (20K7)
ThinkPad A485 (20MU, 20MV)
ThinkPad Helix Gen 3

ThinkPad E14 (20RA, 20RB)
ThinkPad E470 (20H1, 20H2)
ThinkPad E480 (20KN, 20KQ)
ThinkPad E485 (20KU)
ThinkPad E490...

The thread title is from a recent news article (and a follow up) on notebookcheck about Thunderbolt 3 failures.
Quote:
Nearly 40 ThinkPad models have a problem - the Thunderbolt 3 ports in them randomly stop working. Lenovo has pushed out a fix to users, but what does it do? Does it actually solve the problem? If it doesn't, are the devices even repairable, and will Lenovo repair your device for free?

Lenovo notes these symptoms on their knowledge base page:
USB-C port not working
Intel Thunderbolt controller not visible in the OS/Device Manager
...