This is crazy. One of those things that looks like a complete joke and then you do it and it friggin' works. God, I love the internet. Thank you.

This is the second time I experience the same issue years ago, fixing the same spot, with the same video tutorial. You're a rocket scientist man

Mine stopped working today and I almost bought a new one for $100, but thought to youtube this issue and came across your video! This fix worked like a charm

Your troubleshooting tips were a lifesaver for fixing my mouse issues. I followed your advice step by step, and now my mouse is working perfectly again. Your clear explanations made the whole process so much easier.

I spent nearly 1h dealing with Logitech customer service, just to be told I was out of warranty and needed to buy a new mouse. I only managed to get a discount from them to buy on their website. So, I looked on youtube and found this video. Without much hope I tried this, and it absolutely worked. Now I have a discount and my old mouse working 😊 Thank you!

After years of working, my MX Master 2s randomly stopped working just now. No signs of impending failure or anything. Searched, found this video, and fixed within 20 minutes. Thanks!

I was about to spend almost 70€ for a new mouse. Glad I stumbled upon this video. Now it works again. Thank you so much! 😊

Worked like a charm and only took a few minutes ! thank you very much for this tutorial. It fixed my mouse and now it's ready for 5 more years of good service :-)

Just the problem for which I was searching for a solution. I did not want to investing in a new mouse. Thanks for sharing

thanks a lot for this simple and easy to follow video! My mouse is basically my working tool so I panicked a bit when nothing worked anymore. You saved my working day (and my gaming days)!

Loved this video! I panicked when this stopped working for me and I was thinking I had to fork out for a new mouse but you've saved me a whole load of money so thank you ! Great clear instructional video! loved it! Thanks again

Wow. This is amazing. THANK YOU THANK YOU THANK YOU! What a simple solution. + the added investment in a comprehensive electronics screwdriver/bit set. Absolutely worth it for anyone on the fence. I wanted to restore my older MX (currently using MX2) and this tracking issue was my only hold up. After loosening the screws, It works as demonstrated. Glad to know if my MX2 starts to get funky. CHEERS!

Works like magic. Just saved my money. Thank you. I was about to buy a new mouse, only two years after getting the MX "Master" (master disaster). I'm disappointed by Logitech, but luckily KZfaq and good people are existing!

Hey just want to thank you for posting this. This saved me a trip to take it to logitech shop and pay dont know how much to get it fixed. You're my hero

Awesome solution . I almost thought I would have to visit local Logitech , run up and down for them to come back and say sorry it’s out of warranty . This solved the problem in less than 5 mins … thanks a lot

Brother you deserve all the respect there is !!!!!! Thank you so much, the thumb button was stuck and my mouse was 3 years old so I thought of buying master 3 version. You saved me lot of money

Thank you, this worked like a charm. For anyone needing this, the small screws on top are torx T4

Worked perfectly for me. I didnt need the electric screwdriver. Works just as well with a cheap manual one. Thanks for the video. It’s saved me going out and buying another mouse.

Thanks, it totally worked! For anyone interested - it is important to stick the blade under the glue of the pads, so as not to separate the two layers that the pads themselves consist of.

thank you, i googled the symptoms of my mx master cursor eing stuck and was afraid it could be the sensor. Found your video and tried your solution. Worked perfectly. Thanx alot!

i fixed 2 mx master 2s's with your instructions. thank you so much & have a blessed life man!

Like other commenters say; this seems so dumb, but it actually worked. It took me longer to find my T5 bit than it did to fix my mouse. Thanks!

Been trying to get my old mouse to work for like 3 months now. Wish I had found this video before! I didnt have a screwdriver the right size but managed to scalpel my way into the side of the mouse. It's not as pretty as it once was but at least it's working again! Thanks for this!

Thanks so much - I had the same problem and 3 minutes saved me a lot of frustration and money for a new mouse! My thumb button was giving me a hard time before the mouse stopped working as the default action was somehow triggered all the time - I was able to solve that problem by setting the actin to none for that button. However, that did not work when the cursor stopped moving.

Dear you and dear internet, i want to thanks both of u to be amazing af and making me happy to see that my mouse is not broken. it was hard to get here without a mouse and only a keyboard but we did it and now we are way more happier than before

I want to thank you, you beautiful person, for helping me fix this in the middle of a project with a deadline for today, I love you right now.

Perfect fix thank you. This is a glaring design flaw that I hope they have addressed in newer versions, but at least it’s an easy solution. Thanks again.

This is amazing and worked wonderfully! If you're like me and you pried open the casing too fast, undoing the connection of the cable to the other part of the case, it's pretty easy to fix. Carefully line up the pins of the strip into the opening on the board, and there should be a white clamp that seals it in place when you place it in all the way, just close that and it should be repaired.

Who is the world figured out this tweak. My dead mouse I had sitting around for 6 months and wanted to throw out but didn't cause I loved using it (plus it had just a couple of years use) came back to life just like that; Wow! Now I can put back my old MX 1000 to rest that served me very well but was getting a little worn out. Ooh! just Subbed as a Thank You!

I thought "no way this works", tried it, and to my surprise it did the trick. Thanks!

Just did it today! Thanks for the help, I Can't believe that many people have the same issue.

Great video. Mine had 4 screws under the pads. I discovered this by gently pressing the pad with a bunt instrument and where the pad depressed slightly were 2 more screws. Then I peeled back the pads at those locations.

Twice have I done this and twice has it worked, on the same mouse! When it happens once it appears you will have to do this procedure once a year, so thanks for showing it! Update: It broke again, though not the same fault. I've given up and have bought a 3s, hoping it won't be as troublesome.

I didn't believe, but it actually fixed my MX master 2s. I wish I knew this a year ago, when I bought Master 3 for that reason...

Amazing.. Worked like charm.. Did it for a friend and he gifted me an ordered toolset. Cool

oh Man, thank you so much for this video!, I had a bunch of phantom clicks, and I basically replaced this mouse with Mx anywhere 3 and placed this beloved mouse in RIP, but now it's alive again!

Excellent, thank you for this guide. I shall be trying the same with mine this evening. As for the use of the gesture button, I do a lot of work in AutoCAD so I had mine mapped to the escape key as in it would cancel whatever command I was working with in AutoCAD at the time. Extremely useful.

Thanks for the video! Happy I won't have to replace my work-mouse just yet

Wow, it works, you saved my beloved MX Master 2. Thank you so much!

Wow, this has worked perfectly on my MX Master. This is crazy.. basically a jammed button stops everything. I had to use an old wired mouse until I buy a new one but i looked up the issue and I wasn’t alone. Thank you for the advice!

Thanks man. Just fixed mine. Weird that so many of us get this problem.

Turning off the button funtion in the Logitech app didn't work for me. Thank you for the thorough directions on opening up the mouse. Loosening the screws fixed it. :)

I fixed it in 2s with a knife, just stuck it under the plastic where the plastic is moved it around a bit and worked like magic.

Thanks, I had both my mice break with the same fault within 2 weeks. had to pick the first one out of the trash when I found your video. I opted to cut that gesture button board out on mine as I never use them and it saves it breaking again.

Great video! By the way you can easily disconnect the flat cable between the top and bottom shell by unclasping the the little ivory-colored clamp that is holding it on the circuit board. When you are done, just insert the cable again and press the clasp shut.

Moral of the story I guess is to be extremely careful with thumb button lol, many thanks dude!

You don't even have to open the mouse to fix the problem! What I did was just kind of bend the thumb button a bit to sort of loosen it. And then disabled the thumb button through the Logitech Options app. If you actually use the thumb button, you'll have to open it unfortunately. I personally stopped using it; it takes too much force to press it. Thank you for the video, I would never have guessed it was the thumb button that was causing the cursor lock.

I have always hated this button and never used it. This video showed me the exact fix. It clicks again after being loosened. Thank you.

It worked for me ! Thank you very much !!! You saved me 100$... 🙏🙏

A huge thanks! tips: If there's s a problem with this button it may randomly pop up Task Switche!!! Because the default shortcut is Alt+Tab, at first I suspected a virus, so I checked my computer, reinstalled my system even cleaned the keycaps, such a annoying night! You would never know the criminal is the mouse until you Google Alt+Tab+Mouse!!! Now I followed the video to completely fix and clean up (tons of cat hair) I'll be using it for another 5 years hahaha.

Thanks for the detailed video. Needed a $7 toolset from Amazon and was good to go. Logitech were pretty much useless in their support as it was out of warranty, given the amount of feedback here on this video this issue is way too common.

you came in clutch. I was already shopping for a new mice.

Thank you so much, worked on my mouse & saved me a lot of money and my respect for Logitech

Dziękuje za pomoc, naprawa została zrobiona tak jak na filmie i zadziałało. Dziękuje.

Amazing ... my MX Master (gen 1) is my backup MX and needed it tonight because I forgot my 2S at the office. The plastic was all sun-rotted and sticky (a little coconut oil rubdown fixed that) but I wasn't expecting this laser problem. I can't believe this worked ... THANK YOU!!!!!!! My 2015 mouse is back to feeling svelte and clicky again :)

thank you so much, i faced this problem and was ready to buy new mouse, but method in video helped to fix the issue. i use thumb button a lot, so i was happy that it began woeking as it used to do

My friend you just save my life, I love this mouse, and you fix my MS2!!! Thank you!!!

Thanks so much. This worked also for my MX3 Master. What a terrible design, even worse that the fault hasn’t been addressed and rectified. For 100% sure Logitech know about it 😡

Just fixed my mouse using the instructions on this video. Thank you!

Thanks a ton bro! I was worried that I'll have to buy a new one. This solution is weird but it certainly worked. More power to you and your channel.

Thank you - this worked for the problem exactly as explained!!!

Yeap, the fix works like a charm. Thanks for keeping my mouse from adding to landfill.

Eres mi héroe, pensaba que se había estropeado el sensor. Me parece de chiste que este fallo inutilice un ratón de calidad…

I had similar trouble. Did not even know that button existed, after about 7 years of usage. Unmapped it but it was still buggy. This solution did however not work for me, since it seems to be some physical error with that button in my mouse. So I just cut the wire to it (since i've never used it anyway) and now my mouse seems to work properly again. :) Thanks for great video.

My mouse stopped working in the middle of a project- this was a life saver!

Great video! My mouse had the same symptoms and I found your video. It fixed my mouse and saved me a new mouse. Thnx!

thank you very much ! I was able to repair my mouse in a few minutes thanks to your tutorial

Worked perfectly for me. Thank you very much!

Thank you for this one. My MX Master 2S is back !

This works for MX Master '1' as well. Thank you very much!!

This worked like a charm, thanks for the great video!

BRILLIANT! Thank you so much for posting this! Worked perfectly.

Excellent video. Had the same issue and these instructions fixed it. Thanks!

Thanks for the video. This fixed my issue I had with this mouse. Already bought a backup (trackball, to try). Anyway... top!

Awesome. It worked! I mean... It kinda worked, at least I can use the original MX Master 1. The pointer wasn't moving and the small plastic tab that pushes on the thumb button was broken, the rubber from the outside also. It doesn't work, I can't use it so I broke the connection to it. Now the mouse works but the outside rubber... Too bad is ripped, it comes out in chunks. The quality of rubbers in mice is not good, I had many from many brands that becomes sticky then it rubs off then it cracks and rips.

Thank you for the great instructions. Managed to repair my mouse with the tutorial. All i needed was the tiny screw driver kit for 18 €

Perfect explanation, my mx master works fine now.

Thanks a lot for such a simple and easy to understand steps.. got it fixed in less than 10 mins..

Absolutely amazing man. Just used this tutorial to fix the same issue….

excellent! thanks, worked for me, be careful lifting up the adhesive pads.

You are a saviour!!! thank you. Followed the steps and it worked!

THANK YOU! Very happy to not be dropping the money for a new one of these. For anyone in the same situation, bizarrely just unscrewing and separating the mouse top and bottom portions fixed the problem for me. Assume there must have been pressure on the thumb button which was relieved. Also when taking off the pads on the base of the mouse make sure you remove the smooth laminate layer AND the adhesive layer at the same time. I am an idiot and on one end of a side pad managed to get my knife between the layers which then needed superglue to fix it down once finished. Not a big deal and didnt spoil the finish but wouldve been better not to do that!

I can't believe that this worked. Thank you dude!!

I cant believe it actually worked, thanks a lot, I tightened it at first didn't work , then I loosened it a little bit then it started working. Glad I saw this video👌😎

im just experiencing this problem today and am glad to see this video although im yet to screw and fix it and happy to see exact similar case and diagnosis, im also a user of the thumb button, i use it for various function like minimize, thumb up for my computer, thump down for lock screen, left and right for copy and paste. i hope im succesful fixing it like u do

bless you man - it worked - i was just about to shell out a ton of money for new one - you rock

Thank you very much for this video - I had the same problem and Logitech Support was completely clueless about it. This thumb button isn't just useless, it's annoying: When being in a game, it will send you back to the windows desktop if pressed by mistake. The only way to get rid of this function is to install Logitech Options, but this piece of software isn't compatible to some games... And tools like 'XMouse button control' can't handle the unwanted "extra button". I never use it and as it's obviously the source of a very common problem that easily renders the whole device useless, I consider it to be really bad technical design. Still, Logitech sells it unmodified to this day. IDK about that.

Thank you so much! You just saved me $180 to get a new one!

Thank youuuuuuuuuuuuuuuuuu !!! I had just such a malfunction, and it tortured me incredibly! I did everything as you said and the problem was solved! Thank you very much!!!

Worked, thank you. Saved me alot of money.

LEGEND! Can't believe that was so easy 😅 Thankyou 🙏🙏

OMG - deactivation seems to work. Love, much love! ♥

Worked Beautifully my dude

great video. I've had the problem for a while and would just squeeze the sides of the mouse really hard and it would fix it (the pressure allows for the release of the stuck thumb button) unfortunately it has been getting worse. currently I just make sure all my devices have the button disabled within the logitech app. will do this later when I replace the usb port with usbc.

It worked, amazing! And I had an excuse to buy a 50€ comprehensive special bit-set for the T5 screws :)

You saved my favorite mouse, thank you so much, worked like a charm!

Thank you very much, you have solved the problem, in this case mine has been the Mx Master.

Thank you it worked. Though all I did was unscrew the things and press down on this orange thing and boom it worked lol.

This idea works perfectly

Thanks dude I used the "Logitech Options" software, as i don't have that bit. I don't use that button anyway.