Picture of Repair mouse with double click problem

I have a Logitech wireless laser mouse and after a year or so of use, the left click button would double click every time I tried to single click something. As can be imagined, this gets frustrating very fast. So, being the tinkerer that I am, I decided to open her up and see if it could be repaired. Sure enough, It's a pretty simple fix, if you have some common tools and a teaspoon (edit:a tablespoon) of patience. There are some very small parts involved, so you will want to make sure you ware working in a well lit, clean environment so that any parts that are dropped can be easily found. I have now performed this fix for the third time and decided to take pictures this time to share with others who may find this useful. Each time the repair lasts about 6 months to a year before needing to be redone. I imagine at some point the piece causing the problem will break, at which time the mouse will need to be replaced (unless you're determined enough to try and source parts). Good luck with your repair, I hope this helps.

EDIT: There are quite a few comments about the difficulty of step 8. I would advise that you read through some of the comments for various approaches to completing that part of the repair.

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Step 1: Remove batteries

Picture of remove batteries
If you are working on a wireless mouse, you will want to first open the battery cover, and remove the batteries from the mouse.

Step 2: Access screws

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On this particular model there are four screws which hold the mouse body together. These screws are located underneath the slide pads on the underside of the mouse. To remove the slide pads, gently pry the edge of the pad up with a small flat head screwdriver and peel it off. They are held in place with some sort of adhesive.

Step 3: Remove screws

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Remove the four screws with a small philips head screw driver.

Step 4: Open her up

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At this point the top cover should lift off, revealing the mouse's innards.
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artimis36d made it!2 months ago

Thank you very much. It took me around 15 mins to complete the fix (on a second attempt).

you just need to increase the strength of the curved part (the spring),
so you can use a steel rule or whatever to slightly flatten the curved
spring, then put it back on the contacts.

After you flattened the spring, it will be harder for you to put it back on the tiny switch.
I don't have tweezers with me, I used a pair of nose pliers to put the spring back in place. My mouse is like new again.

dmiranda87 months ago
I cant believe it worked. After some yelling and time I finally got the damn copper piece into place. THANKS!
csheng110 months ago
Hi, thank you very much for the great tutorial - I've tried it and my mouse is working fine. May I suggest that for step 8: Reinstall tension spring, you (1) place the curved tab (which is in the middle of the spring) at an angle on the tiny ledge of the metal piece on the mechanism first, then (2) hook the spring onto the front part of the mechanism, before finally (3) sliding the spring beneath the rear part of the mechanism?

I did not have much luck with the original action series of 2-1-3 until I tried 1-2-3 and the whole spring just slid into place while pivoting on the middle curved tab.

Hope this helps. And once again, thank you!

Many thanks, dude. Getting the tiny metal spring out and in was a horrible, fiddly chore, so I ended up curving it with a pair of tweezers while it was still installed.

Stopped doubleclicking, tho the button still remains excessively responsive.

parkersadams made it!2 days ago

I'm doing homework and opening files and my computer is "double
clicking" files, opening files, not holding them when i'm dragging them,
i did a full security scan thinking it might be software (virus,
malware) related, googled it, found this article, and YOU, frEmn, solved my
problems! This 15 minute repair took me 40 minutes because I didn't
read the comments under Step 8: Reinstall tension spring where they
recommend giving the spring a slight curve to aid in putting it in.
That and putting it in with my hand versus a tool seemed to be the
missing information. So for those of you out there who have a $30
wireless mouse that is double clicking, follow these instructions for continued success. THANK YOU FREMN!!

rgujrathi3 days ago
Ha ha
Tell me about it. Tried this on my Razer Deathaddder 3.5 G and Zowie FK. It has worked wonders. I mean, its simply an awesome tip. Cheers to the author, saved me almost hundreds of dollars on new ones. Will keep doin it until the tension thing finally breaks and then get rid of the babe....!!!

Just wondering if we could even get that spring thing somewhere, will not have to buy another mouse for like years together...!!! Coz it actually feels like a new one after doing this...!!!

To the author: thank you! It took me about an hour, with reading glasses and a magnifier, and I had to remove the cover on the other mechanism to get a better look at it, andi tried so many different ways to get that spring back in that I can't remember what finally worked. But I wish I had read all the comments first-- next time I'll try blowing on it first! I kept doing the math-- a $60 mouse that lasted just a year costs way too much at $5/month. I guess I could live with $2/month, which means having to repair it at least once more. Maybe I'll try soldiering in a new switch next time.

So satisfying to fix something good as new rather than throwing it out, and then being able to share my success with folks who get it.

frEmn (author)  Danni Michigan6 days ago

Thanks for your kind comment. I still get a smile every time someone here reports a successful mosuse repair.

ydoucare4 months ago

Notice how most of the comments here refer to Logitech mice? I did this "procedure" to the left button on a Logitech Performance MX (I have a total of 4 Logitech mice with this problem) and it seems to have helped, but not sure that it completely solved the problem. It took a good hour of fiddling with the spring to increase the tension while still being "clickable". Eventually, I got it pretty much perfect. It is now has noticeably more tension than the right button. While much better, it still suffers from an occasional double-click or will let go when dragging.

Meanwhile, we have over 100 cheap OEM Dell mice out in the wild that pretty much never exhibit this problem. I have another Performance MX along with an M705 here at work with the exact same issue. At home, I have a Logitech G700 with the same issue. Why is Logitech STILL producing mice with this problem?

frEmn (author)  ydoucare6 days ago

I agree. The popularity of this Instructable alone should be proof that Logitech has a manufacuring/engineering problem on their hands.

Anyone have any advice for opening up the microswitch on the M570 logitech trackball mouse? There are tiny little latches on the sides but I'm afraid of destroying the thing if I pull or push too hard.

frEmn (author)  jesse.a.chapman6 days ago

The plastic tabs are very fragile. I broke one of mine the first time I opened the mouse (you can see this in step 6). The best way is with a very small flat head screwdriver or razorblade/exacto knife. Gently pry the tab away from the switch while lifting the cover.

Anyone have any advice for opening up the microswitch on the M570 logitech trackball mouse? There are tiny little latches on the sides but I'm afraid of destroying the thing if I pull or push too hard.

Thank you very much, my M505 is clicking again like new.

saihamaru7 days ago

awesome, my mouse is now working right again XD
step 8 is pretty tricky, but working on it from behind first is easier
so i insert the curved tab and the rear to place first and then pull it a little so the front hook gets in place (don't pull too hard or the plate would bend in weird angle, i had to throw it away and use another plate from one of my broken mouse, phew)

if u wont open ur mouse just simple run this tiny tool any your mouse will be work fine too ;)

this limits the clicks between few ms to 1

worked for my hama uRage fine ;)

hope i could help too ;)

Awesome now I dont have to throw away my favourite mouse and purchase another one..

HMMMMMMMMM....anyone want a mouse that double clicks? I'm just gonna buy a new one...

tonycm0913 days ago

works well!!! Thanks!!

DevinS13 days ago

I found a software solution. I just turned down the double-click speed in the Control Panel to the 4th tick mark from the left. It seems to have solve my problem for now.

BradleyT116 days ago

Razor knife worked great for pulling the cover without breaking it. Easily popped up and the blade is just wide enough you don't have to pry at all, just slide it in from the lower side.

MohamedT20 days ago

Thank you for this, I got my mouse fixed. :D

gawdzila22 days ago

Thank you for this Instructable! You weren't kidding about re-installing the spring, though. I also bent up my spring pretty good while fiddling with it to re-install it :/ It's a pretty easy thing to do by accident. So far it works fine, but I hope that doesn't cause problems down the road. I suppose I could always take a spring out of the clicking mechanism for one of the other, less-used buttons, though.

MartinP323 days ago

Fair warning! The last part of putting the tension spring back into place, is close to impossible! at least on my mouse.. Still , after 3 hours and allot of sweating, I'm not even near getting it into place and he spring is now even more screwed up, then when i first opened it. It is way smaller and more fregile then it looks! I think my mouse is completely broken now. :(

MattS7 MartinP323 days ago

I figured out the trick to putting the tension spring into place is to do this: (I'll be referencing the last picture on Step 8 with the three red arrows)

First, hook the leftmost end on and slide the middle part into its groove at the same time. Don't worry about the rightmost part for now (this shouldn't be too difficult but it might take a few tries)

Once you think you have those two in place, let go of the tension spring and it should stay where it is, with the rightmost side sticking up above its slot. If it falls out then that means it wasn't in place correctly and you'll have to reset it.

Finally, put one of your fingers over the left and middle parts of the tension spring and press down lightly, just so that it stays in place. While holding it down, use your other hand to wiggle the rightmost side left-to-right until you can move it far enough to slide under the piece and into its slot. You're using a combination of holding the left and middle parts down and wiggling the right side so that you can slide it in without moving the rest out of place. Once it's in place, it'll be pretty obvious since it won't move around at all anymore.

It's actually not that hard once you get the hang of it. I spent an hour or so messing with tools, then figured out this method and got it on the second try (spent maybe a minute at most). Best of luck to you!

ReoZ24 days ago

lol mine it fixed, but the clicking sound is gone.

livelyVrl24 days ago

Spot on!!! Perfect :) :) :)

jpenver28 days ago

Took me about 30 minutes in total. I think I got lucky getting the copper back in. It didn't "click" when first put in, but works fine and clicks audibly when fully reassembled. Mine is a Performance MX "darkfield" and still has the same crappy switches.

jonibang1 month ago

should come with a warning before i opened the thin copper thing..that putting the stuff back in is very-very hard..

after 2 hours struggling with putting it back up, the thin copper thing flew and i lost i will have to buy a new mouse..:(

jackmeist0r1 month ago

Had trouble with my mouse doubleclicking for quiet some time now.

In windows it can be taken care of with a autoHotKey Script but in Ubuntu i was not able to find a software solution..

Your guide helped me solve it.. so thanks!

MikeG11 month ago

And here I am just fixed a mouse the hard way... I desoldered the clicker and soldered in one from an old mouse! I honestly never even thought to try opening up the clicker! D'oh!

frEmn (author)  MikeG11 month ago
Hopefully the switch you put in was better quality. As you can see by the popularity of this instructable , there seems to be a quality deficiency in these switches. There was a comment earlier where someone found a higher quality switch and swapped it out as you have done.

Can I ask what the part number is for the microswitch? I'd rather just buy a replacement switch and solder it in than mess around with this.


The microswitches seem to be a similar size no matter what the brand of mouse... I repaired a Dell mouse with the microswitch from a Tesco mouse and it worked great.

I registered only to be able to add this comment: Man!!!!! You deserve aaaall the good in this world! I saved $150 in 5min. Not to mention that I was fighting this issue for months! I can't express how grateful I am. Thank You sooo much.

gbowdeniv2 months ago

Thanks for this! Really good info to have! I just repaired my mouse and it's better than ever! :D

mdciotti2 months ago

Thank you! After about 30-45 minutes of tinkering, this solved my problem that I've had with the past two Marathon M705 mice. Both were given to me as replacements for defective Logitech mice, but unfortunately my warranty finally ended and I could no longer get another replacement for this defect. I resorted to switching to the right mouse button as my primary for a while, until I stumbled across this guide. Once again, many thanks!

jdmunguia made it!3 months ago

Awesome after 1 hr 30 min it work.


fixdatmouse3 months ago

Great job ! I have 3 MX705 Logitec's . One is very similar to yours... and I fixed accordingly. And yes that spring is difficult but very doable.

My other MX 705 has a greenish button housing and the "snaps" are on the sides. The spring looks like it is made out of "tin" as compared to brass or copper as in your demonstration. The button housing is harder to get off... looks less durable, and the "tin" spring also looks "cheaper" . Oh well... so it goes.

Thanks... I do like these mice and their functions... and you definitely saved me $50 for a new one. Although with the "cheaper construction" of the button on the newer MX 705... Logitec may have lost any of my future business in mice.

Great job on this instruction, and anybody reading this should read through all the posts to get any tips they can get to get that darn springy thing back in ! :-)

waoooo it was just toooooo good...

where was you i have thrown 5 mouse because of it i didn't know this :(

but now i know how to dealt with them thanks a lot :)

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