Logitech Marathon Mouse M705 Erratic Scrolling Fix

My Logitech M705 started acting strange with scrolling. Ideally one scroll of the scroll wheel would produce the same amount of scrolling each time and in the proper direction. Instead it would jump around, bounce back in the wrong direction and be generally unpredictable. The fix that worked for me was updating the firmware on the unifying receiver. 

The bonus is that the new firmware fixes a security flaw.

The instructions can be found here on Logitech’s site.

Open the unifying software, go to Advanced, check which version you have, 012… or 024… and grab the corresponding file. Close the Unifying software, run the exe then open the unifying software again and go to Advanced. You should now have a firmware update available by clicking on the Update Firmware button.

It’s hard to tell if this fixes the problem just by resetting the receiver or it was the actual firmware that fixed it. Either way, the scrolling is now fixed.



20 Replies to “Logitech Marathon Mouse M705 Erratic Scrolling Fix”

  1. Hi, thanks for your post.
    I have got the same problem.
    I did your recommendations, firmware update but the the situation is the same.

    Did the firmware update solved your problem?

  2. Thanks for posting this. I’ve been cursing this mouse ever since I installed Windows 10 and the scrolling got all wonky. Installing the update did the trick!

  3. I Faced the same problem for a week and found the solution.
    Uninstall Setpoint application. It breaks the scrolling somehow.
    Everything back to normal after removing it.

  4. This is also driving me crazy, but I don’t understand the instructions to “grab the corresponding file” and “run the exe…”. I downloaded the Unifying Software and went to the Advanced setting but all I could figure out from there was to check the updates and Logitech says I am updated. Could you dumb down the instructions a little please?
    Thank you.

    1. From the unifying software determine what version of the receiver you have. This is in the advanced menu. It will list the version as something like 012.007.xx or 024.xxx. You need to know which version you have for the next step.

      Now go to the forum posting linked above: https://community.logitech.com/s/question/0D531000055gw8YCAQ/logitech-response-to-unifying-receiver-research-findings

      Here you will see instructions numbered 1 through 6. In step 3 it requires that you download a file for your receiver. Download the one that matches your reciver (either 012 or 024).

      Close the unifying receiver software, unzip and run the file you just downloaded, launch the unifying receiver software, go back into the advanced menu and the update firmware button should be clickable (no longer greyed out). Click it to update.

  5. Elias, thanks very much for your quick and thorough reply. Unfortunately after going thru all the steps including installing Setpoint and Options as recommended in the Note, it’s still doing it. The only thing I’m not sure worked was running the file I downloaded. Nothing happened when I hit open, so I hit run as administrator. So I don’t know if it ever actually ran the download. I was able to click on the update firmware button and it indicated that it was updated.
    Thanks for the help.

  6. For my Logitech mouse I went to Setpoint Settings and unchecked smooth scrolling. Now my scroll is smooth with no page jumping. Not sure why smooth scrolling would actually be unsmooth but it worked for me?

  7. After trying all the excellent suggestions here and not hearing back from Logitech for over a week (with NO help from them), I found my answer on YouTube. Some kid had posted to either blow into it or use compressed air – I thought it was a joke, but what the heck…cleared up the problem Immediately!
    So if all else fails try that.

  8. If all else fails the small rectangular button on top can be depressed and will engage a ratcheted click stop which will stop the “free wheeling” scrolling and bouncing

    1. This comment helped me to realize exactly what that button did. And, it fixed the problem of the randomly scrolling m705!!

    2. I had to do switch over the the ratcheted click as none of these solutions worked for me. The blowing suggestion helped, but only a little.

      Shame.

  9. Help please, I followed all the steps, made sure my unifying software and setpoint was up to date, found i had 024.xx and downloaded that, ran as admin and clicked update in unifying and the download failed, can’t use my mouse and can’t reconnect my mouse to the receiver, went to devices and printers and pc no longer recognises it as a unifying receiver but as “USB BootLoader”… I’m currently using a steam controller as my mouse 🙁

  10. I managed to find out what happened, some how the 24.xxx update fried my unifying receiver…. Went to Walmart and bought a $15 Little M325 with a unifying receiver and connected my M705 to that, It had the 12.xxx software and I updated that. After all that work my scroll wheel jitteryness is finally fixed at least.

  11. It’s good to find this discussion, I assumed the problem was just me!

    Sadly, I’ve tried everything above and still have the problem.
    Curiously, if I move the receiver from USB socket to another, the fault goes away for a few hours.
    Without doubt, it’s the Setpoint software at fault.
    Uninstall it, problem is gone – but I need it for my Logitech Keyboard, and the shortsighted programmers at Logitech won’t allow for removal of the mouse in the software.

    Meanwhile Logitech Support is totally hopeless, I’ve had a ticket open for 6 weeks and communication is dire.

    If I ever do find an alternative fix, I’ll be sure to post it here.

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