04-25-2012 07:34 AM
I haven't opened up my Performance MX, but the part number for early model MX Revolution is D2FC-F-7N(10M). I have a batch of 5 being shipped from China with that exact part number pictured. I hope it's what I actually get, but seems worth the risk for $5 shipped (5 microswitches). Performance MX clicks much louder, so it might use a different switch.
04-29-2012 07:07 PM - edited 04-29-2012 10:05 PM
EASIER & CHEAPER SOLUTION!!!
I have a MX610 Laser Cordless mouse that I bought six years ago (mid 2006). It started its double-clicking shenanigans roughly two years ago. That's how long I've been putting up with it. Until now. Here's what I did.
Take whatever mouse you have apart. It seems that most, if not all, Logitech mice use the same or very similar micro switches for the left and right click functions. These switches can be taken apart. Use a tiny screwdriver to pry the top cover off, but be careful because it will go flying off along with some of the internal parts. There is a springy copper piece inside that sits on and rides in between two other contacts. Just take it all apart, clean it with isopropyl alcohol, and put it back together. Make sure to clean everything good. I used Q-tips and a piece of cloth (to get between the contacts). Seems to work fine. No single-click double-clicks, yet.
I should have taken some photos or a video when I did this. Just so you have an idea of what you'll be dealing with, here's a link to a photo of the inside of a micro switch that is very similar to the Logitech switches:
It's a lot easier than it seems. Just don't lose any of the tiny pieces like I almost did. I'm just happy to be getting more life out of my six year old mouse.
05-14-2012 12:30 AM
Hey guys. I didn't read every post, but It seems many of you are having the same problem I have with my MX620. I just created an instructable on how I fix the problem. I've had this mouse for many years and have used this fix three times now. After about 6 months to a year, the double click problems starts happening again, but every time the fix works.
I hope this helps.
07-20-2012 10:49 AM - edited 07-20-2012 02:41 PM
I fixed my M570 in a very simple way. My M570 started to have the single-double clicking problem 1 year after the purchase. Either because the plastic parts have shifted in shape or the micro switch got touchy, the pressing motion of the buttons failed to properly trigger the micro-switch, instead the micro-switch was at a click/no-click border-line state every time the mouse button's pressed, therefore generating multiple clicks. I attached a piece of rubber tape on the bottom of the mouse button to deepen its stroke, now it's all fine.
07-21-2012 05:43 PM - edited 07-21-2012 10:02 PM
I have 3 Logitech mouses (MX Revolution, Performance Mouse MX, VX Revolution) that started double clicking on single click after a few months. Too expensive for double click problem.
The design is excellent, but quality is not.
This is for sure I will not buy another Logitech ever again
07-28-2012 12:36 PM - edited 07-28-2012 12:44 PM
This issue has plagued me for some months but the mouse (LX7) is so comfortable I don't want to just dump it (this model is no longer made). Weird clicking, intermittent dragging, imprecise operation etc has been a real nuisance. Tried the battery out and de-static solution which seemed to work a bit but not for any length of time.
As it is well out of warranty i decided to take it apart - 2 screws in the battery compartment and 1 each under the front slider pads. There was a fair amount of dust around the scroll wheel so cleaned that out and generally blew and brushed dirt and dust from the rest of the interior. The microswitches are activated by pins which extend from under the button and both switches clicked OK. Looking at the pins closely I could see that the end of the right button pin seemed pretty unmarked but the left one had a shallow indentation that seemed to correspond with the microswitch.
Reasoning that thousands of clicks had probably worn the indentation and that therefore the switch wasn't being depressed to its operating level I decided that filling the indentation might cure the problem. I put a drop of superglue on the end of the pin into the slot. Not too much but enough to smoooth the surface. Then sprayed it with superglue accelerator and made sure it was cured hard. Then reassembled the mouse.
Bingo! The mouse is back to clicking and dragging with a light click on the button - as-new operation, in fact. Will it last? We'll see how long the hardened glue resists the switch but I'm hopeful that this will keep it operating well for a while.
My conclusion - it's a mechanical issue of wear and tear. Forget software as a cause and get the screwdrivers out...