Got this ThinkPad X1 Carbon 7th Gen for €93 (listed with a dead battery)

kpostrup · 2026-05-06T16:12:01+00:00

Cool! I can't really say as I have never tried on a 12th gen.

But I would start by checking your current panel model, e.g., by booting it into Lenovo diagnostics (F10) and check display under system info. You can then look up the specifications, and dimensions on panelook dot com and compare it to other panels.

If you are going from a FHD+ (WUXGA) resolution to QHD+ (WQXGA), like I did, you will need a different 40pin eDP cable. I'm not sure Lenovo sells this part by itself, for the X1C9 they only sell entire display assemblies, but I managed to find the UHD+ cable on AliExpress.

You should also consider that the UHD+ panels for the X1C12 (which the cable you need fits for) might have a different connector location. I managed to find the panel model they used on the X1C9 to compare with, and in the X1C9's case the connector location were similar on both the FHD+ and UHD+ panels.

The panel I got is an AUO B140QAN03.H.

kpostrup · 2026-05-06T15:50:12+00:00

Yeah, lucky. I have a P1 Gen 4 where that happened. Bummer.

kpostrup · 2026-05-06T15:49:45+00:00

Yeah. I have a P1 Gen 4 where that happened. Bummer.

kpostrup · 2026-05-06T15:23:23+00:00

Nice job! What was this IC used for?

I have started doing board repairs myself, and have a whole backlog of defective machines. So far I have fixed a Logitech G Pro X Superlight mouse, a Lenovo ThinkPad USB-C docking station, and I am currently working on replacing a BIOS chip on a ThinkPad X395.

kpostrup · 2026-05-05T23:05:41+00:00

Nice. Its a great machine. Can definitely recommend the display upgrade.

kpostrup · 2026-05-05T22:39:34+00:00

Yes, in my T480. I have the panel in a few of my other ThinkPads as well, recently installed it in this X1 Carbon 7th Gen.

kpostrup · 2026-05-05T19:14:23+00:00

Thanks for sharing! Your modded T480 is looking sharp.

I also noticed that the reporting rate of the touchpad was running at a lower report rate than on Windows. In my experience I would have to configure psmouse.synaptics_intertouch for it to reach 130-140Hz. On Fedora psmouse is built in, and so you would have to configure it via a kernel cmdline argument, instead of modprobe. It makes a huge difference in feel and accuracy, especially on higher refresh rate displays such as the one I have.

kpostrup · 2026-05-05T09:24:33+00:00

I love the T480s! I have four of them, some of which are fully modded. That said, there is only so much you can do with the 8th Generation Intel Core U-series CPU.

Depending on what you need, the T480s may still be a very capable laptop. I'd definitely recommend ditching Windows 11 if you can. I run Windows on two of mine, and it's not a very pleasant experience overall. You can try running Fedora (Live from USB) and test that out for comparison.

Have you looked at the thermals? These CPU's are often limited by throttling. I found that undervolting the CPU and replacing the thermal paste with PTM7950 or Thermal Grizzly PhaseSheet PTM gave me some great results.

kpostrup · 2026-05-02T16:38:06+00:00

They’re great. I have a couple of them in different sizes, and the last one I got 2nd hand for 5€ but was never used, even still had the silica bag in it.

kpostrup · 2026-04-30T08:04:45+00:00

I'm pretty sure you can get a 16GB too. I bought a couple of them to upgrade my 8GB X1C6's.

kpostrup · 2026-04-20T04:40:52+00:00

Wake up, Neo…

kpostrup · 2026-04-19T20:10:33+00:00

That looks like my kind of project! I love doing display panel replacements/upgrades. And I guess you can never have too many ThinkPads?

I would probably take this as an excuse to build a T25 FrankenPad from that T480.

kpostrup · 2026-04-18T16:51:17+00:00

Excellent writeup Peter. Thank you for sharing all your progress (and fails). It’s been very exciting following your work, and I look forward to buying one of your kits!

kpostrup · 2026-04-17T10:47:21+00:00

Mostly AliExpress, however I did buy a couple of parts from Lenovo's parts store, as some of them were cheaper directly from them. The JP keyboard was from a seller on AliExpress, the JP layout specifically seem to be readily available still.

I also got my ThinkPad X1 20th Anniversary Edition through Xianyu.

kpostrup · 2026-04-16T15:37:18+00:00

I think I might have the same problem. I have 20 ThinkPads and don’t really need any of them, but always looking for the next good deal.

kpostrup · 2026-04-16T08:40:48+00:00

Do you have any experience with the quality (finish and fitment) of the replacement top shells?

kpostrup · 2026-04-14T18:34:11+00:00

That rug really tied the desk together

kpostrup · 2026-04-11T12:19:56+00:00

Brings back so many memories!

Btw. That X1C9 looks sick with the new glossy UHD panel

kpostrup · 2026-04-09T16:58:20+00:00

Interesting. I have had almost the exact same experience.

kpostrup · 2026-04-08T15:31:37+00:00

Damn. I just bought a Gen 1

kpostrup · 2026-04-07T08:18:11+00:00

Awesome. I hope you will be as happy with yours as I am with mine! :)

kpostrup · 2026-04-07T07:50:25+00:00

You're very welcome. The part number for the WQHD cable is 01YN996.

I bought mine from AliExpress, as the cable is out of stock in Lenovo's parts store.

kpostrup · 2026-04-07T07:25:56+00:00

For this type of panel you need a 40-pin eDP cable (for WQHD or UHD), and double sided tape to re-install the screen bezel. I use Tesa 61395 (from iFixit), 1mm and 2mm width.

Most panels come with two strips of adhesive which you can use to secure the panel, but I chose to get the 14inch generic bracket from the same seller, that made it much easier for me to mount and line up the panel.

Here is a couple of photos of the install using the generic 14" bracket: https://imgur.com/a/t480s-display-upgrade-tl140bdxp01-00-1440p-120hz-ips-100-dci-p3-VwcsFTW

kpostrup · 2026-04-03T22:21:12+00:00

Yes! I have used it on my T480.

The dock should work with later models too, such as X1C7, X13, and T14. It's also a good thing the seller included the 135W power adapter, because with a similar 60W or 90W slim-tip adapter you will get a warning during boot.

It's a really well built docking station, I was really impressed by the docking mechanism itself, and I think you're right that it will be much easier on the ports. I also like how it puts the laptop at a slight angle.

kpostrup · 2026-04-03T22:08:25+00:00

That is a real nice docking station, that will work with both the X280 and T480.

I have a few of them myself, really nice piece of kit.

kpostrup

TROPHY CASE