Logitech MX Vertical Left and Right Mouse Button Microswitch Replacement

Great work on the guide. My mouse wouldn’t drag reliably anymore, all better now!

I wouldn’t classify this as difficult btw, medium maybe but everything is fairly easy to open.

Just one thing for anyone attempting:

-The first, big ribbon cable to the big mainboard is slide-to-unlock

-All other ribbon cables on the top half are tilt-to-unlock (lever style).

I didn’t look/read carefully and broke the latch on one of them trying to slide it…

Thank you! The original switches didn’t survive even a year of my work in Blender. I was considering just sending the mouse back since I had still a year of warranty on it but they would just replace the switches with another 10M or worse just throw away the mouse and send me a new one. Now I can continue using this mouse with my new 50M switches and have a good feeling from repairing it by myself. :)

Super guide, thanks for putting it out there. I installed the Kailh GM 4.0 Micro Switch(60M) successfully and have to say I absolutely love the way they feel. Also, a little heat on the sliders before removal enabled me to reuse them without issue. Finally, I was a bit reckless in separating the old switches from the circuit board and found I had separated the trace from the solder pad on the opposite side of the board after putting it back together. It’s worth checking continuity on both sides of the board before soldering the new switches on. In my case I just used a single tiny strand of copper to reconnect them successfully.

This was really helpful, thank you!

I was able to reuse the bottom sliders. They were super sticky and I had no issues reapplying them and they aren’t peeling up. That may not be the case for everyone, but I would recommend that you try reusing them first and just order new ones after you verify you actually need them.

Also, the sliders are made up of 2 thin pieces stuck together. So to keep them in good shape for reuse, just make sure when you start peeling them off that you are peeling off the layer actually stuck to the mouse and not just the outer layer.

This guide helped me do my first repair involving soldering things. Seriously, thank you so much. My left mouse click has been replaced with a nice Huano Blue switch and it’s no longer dropping clicks.

I was ready to replace the mouse when I saw this guide. As I didn’t have a spare switch, I just sprayed contact cleaner inside the switch. It’s working like new now. It could be 2 things wrong with the switch: The plunger is sticky or the contacts are dirty. In any case, the cleaner solved the problem. Note: I believe that in most cases, the faulty switch would be the left button. An alternate solution if you don’t have a spare switch would be to swap switches. Note 2: I ran out of contact cleaner and used car brake cleaner.

Thanks a lot! I was having trouble after using the mouse for about 2 years - I noticed that when clicking and dragging to select text, for example, it would mistakenly register that I stopped pressing and started again, losing the selction - very annoying. I followed your guide and replaced the switches with Kailh GM 2.0’s!

Thanks from 2022! Works like a charm, but removing the microswitch is a bit challenging without right tools.

Thanks for guide !!

One recommendation that I have is not to remove sliders but to take exacto knife and cut out screw holes. It saves you of mess of removing sliders and reinstalling them and also makes it easier to do repairs in the future.

Thank you! Awesome guide! This saved my from buying a new MX Vertical and now I've got 50M switches.

Those little cables sure a pain to lock back in. And I expected removing the switches would be difficult; but, solderwick worked pretty well to remove most all the solder.

Fantastic guide! Replaced my mouse with two Omron 50M, still took me 2 hours >_< ******

The most difficult step IMO was 5 and 6 because the closure just did not come off because of the strange shape.

One more thing notable was those 3 ribbon cable connector, especially 2 smaller ones, extremely difficult to install them back due to tiny size.

And allow me to say congrats to Logitech, you just build a mouse with no intention of repair, NOT AT ALL. Will NEVER buy your products again.

Thank you for the guide! It's very difficult to desolder the Microswitches btw, the boards on which they are mounted are so small, that you definitely need a third hand.

Thank you so much! Worked like a charm, this was my first ifixit thing (bought the Mako kit) and it went smoothly until I hit the de-soldering part. That took me a lot of tries to get right, but I got it in the end and I'm so happy I can continue to use my mouse. I've had 3 MX Verticals that the switches broke in after about a year!

Thanks a lot for the very detailed guide!

I successfully replaced both switches with Kailh GM 4.0s on my MX Vertical yesterday without any hiccup.

They're a bit noisier than I expected, but the feeling is better than the stock Omrons, so I'd say it's both a repair and an upgrade :).

This is very difficult!!! Took me around 2.5 hours. Desoldering is the hardest part. Much easier if there is someone to help holding the board/microswitches.
Reconnecting the ribbons is also quite challenging, except for the big one.
But in the end I'm happy I followed this tutorial, I have a perfectly working mouse again and I'm not creating a lot of unnecessary electronic trash.
Thank you!

The quide for the reassembly was really well documented.

For me unfortunelty while trying to unsolder the swiches the pad came off.

Used a very small wire to make a new connection point on the PCB. (Used a microsope for it).

Also used the 50M click version for the switches.

Works great now :)

Amazing guide, this did not miss a single detail and the instructions make the breakdown simple and easy to do without breaking anything. The 50m switches have a much crisper/snappier feel and were only $4 more, definitely recommend.

For those with limited desoldering tools or needing to make it easier to get the old switches out:

- Before desoldering, clip the excess metal on the three prongs underneath the switch (I used a flush wire cutter to get as close to the base as possible). This allows the switch to work its way out of the board more easily. I had a hard time heating all 3 pads at once, this method allowed me to heat two at a time and gradually work the switch out in a couple of passes.

- Once removed, use a pin punch or similar thin cylindrical tool to clear out any excess solder.

The only downside I saw here was that clipping the prongs created some small metal fragments. Regardless, it let me get this job done with no braid / solder removal tool.

Great instructions! Absolutely perfect! Very detailed pictures and tips that all helped. Thank you very much for your time!!!!!!!! I'm lazy so I did the button replacement on step 12.

Thank you again!

Thank you for the instructions. I followed them and was able to complete with no issues.

Helping hands are a must desoldering. A good solder sucker and solder wick are very useful. Be patient with desoldering if you don't do it much. It takes some time to remove these guys.

mouseclub.co has a great selection of switches and their customer service was awesome. I grabbed some Kailh GM 80M switches that I've been very happy with so far.

Any tips for a good silent (or at least much quieter) switch?

Thanks for the easy to follow guide! This was extraordinarily helpful for completing this project. I used Black Kailh GM 8.0 Mouse Switches and bought them from here: https://a.co/d/2EXlibz for $6.23 for a 4-pack. Also, because more information is better than less. Here is a great guide that discusses the difference between Kailh 8.0 switches and Japanese Omron switches: https://www.xbitlabs.com/kailh-8-vs-japa... For my preference I went with the Kailh because I don't trust that I won't get a bait-and-switch on the Omron Japanese vs Chinese switches when buying on Amazon.

As an amateur who owns a solder and occasionally fixes some stuff, I've just successfully replaced my left button microswitch solving the issue where click & hold operations like drag or select were becoming more and more difficult. My MX Vertical has been my primary mouse for 4 years and apparently, the microswitch reached its end of life.

I heated the slider pads and managed to reuse them successfully. Watch out - they come in two layers - the slider pad itself and a glue layer. I used an empty waxpaper used to hold stickers.

Unfortunately, I broke the white motherboard ribbon clip in the process (one of its latches broke off), so I applied superglue to hold it in place as I had no other option, which might kick me in the future, though. This is because I did not know this type before.

Due to lack of equipment, I used a 1mm drill to clear out the solder of the holes after removing the original microswitch.

Other than that, I followed this really nice and accurate guide without any problems. Thank you very much!

That guide was great, I used it to replace my left-click switch, which wasn't working anymore. However, I thought it would be a good idea to also preventively replace the right-click switch at the same time ( I replace the 10M switches with 50M switches as well).

now my left-click is working again (yay!) but my right-click isn't working anymore. does anyone has an idea what I might have done wrong? I'm pretty sure I followed all the steps closely. Might I have damaged somthing while soldering?

I also asked this as a question in the forum (with pictures)

Terrific guide! Thank you so much for this! I was successful with it and so a little bit of e-waste could be saved for the health of our earth. Instead of the original microswitch having a life of 10M clicks, I soldered replacements with a life of 60M clicks. Although only the left mouse button was affected, I took the opportunity to replace the right mouse button as well.

If you are looking for a German dealer, have also a look at eBay. I found suitable microswitches and mouse gliders (which I didn't buy, as I could reuse the old gliders).

Thank you. It is fixed

Thank you! This saved a otherwhise perfectly good device from trash!
I used 99,9% Isopropanol to remove the sliders (got that stuff for cleaning my 3D printer) and was able to reuse them as well :)

Thanks, worked perfectly!

Be careful to not bend the pcb while remowing the switches if you are using a spuger etc to pry the switches. The material seems to be really soft when it is warm.

Thanks for the guide! Very straightforward process. Took me somewhere between 45-60 minutes to complete. The hardest steps were loosening the grippy facade from the back of the chassis and desoldering the old microswitches.

I ended up using Kailh GM 4.0 switches as replacements based on a recommendation from the reddit thread that led me here. They're nice and clicky.

Also, I found I could simply press the adhesive sliders back into place at the end. To remove them, I used the very thin spudger shown in the photo for Step 9 to slowly and carefully release each slider and adhesive from the chassis underside, making sure the adhesive remained attached to the slider, and being careful not to touch the adhesive with my fingers or get it stuck to anything else. That seems to have done the trick, as I've had no problems with the reapplied sliders so far!

We tried this process but had no luck. We messed with something on the contacts with the copper lanes, as neither of the replaced switches worked. We substituted a copper lane of the left switch with a cable, managed to get it to work, but wasn't possible to do the same with the right one, so I just bought another mx vertical, this time with 2 year extended warranty. That amounts to a total of 5 years (3 by law plus 2). Prevously it was just 2 by law and the two mouses I bought at similar times started failing concidentally just after those 2 years. Ironically, my old G400s still works like a charm. Was thinking to ditch the brand entirely, but there doesn't seem to exist any ohter comparable vertical mouse from other brands.

Coolest gide to fix that. Thanks for all!

Followed this guide to replace my switches. They work great. Shame the included ones only lasted ~1.5 years!

thank you! mouse repaired with great pleasure!

Thank you very much for creating this post, i found it useful

Thanks a lot for a great guide! As always - disassembling in a gentle way is the biggest challenge. Messed up the lower adhesive layer of the smallest slider a bit but managed to restore it to a usable condition by help of tweezers with sharp tips. Hopefully the newly installed 60M-rated switches will serve for longer.

Absolutely great guide. Thank you so much.

My issue was that while sliding stuff on the screen, the mouse would occasionally "drop" files or windows in the wrong place (and pick something else up !). Very annoying indeed.

Bad surprise regarding the Logitech brand which is otherwise stellar in all products I bought.

I only changed the left microswitch, so now 2 different sounds for the buttons :-). As Michael above, a D2FC-F-K(50M) (2 for 3€ straight from China).

I used a pump to remove the soldering material, as I did not fancy pulling on the switch while heating. It went very well.

For those who hesitate, don't !

I also had the problem that the mouse would not drag anymore (left click) and this fixed it. Approx. 1h to desolder one switch using a pump and a few minutes to resolder it.

I found this Welding-Free Hot-Swappable MX Vertical motherboard on AliExpress. There is also one where no soldering is required to swap out the switches. Any idea if this sort of replacement actually works?