Easy fix for Logitech MX Revolution not charging

17th December, 2007, 76 About the author
Ben Vallack is a web developer and filmmaker.

Tags: logitech, mouse, mx revolution, not charging

A little while ago it appeared that my Logitech MX Revolution had stopped charging. It didn't seem to recognize that it was placed on the charger. After almost giving up it occurred to me to check the contacts were clear on the underside of the mouse. I just scrapped them with my finger nail which seemed to shine them up a bit. It actually only seemed that the one on the right needed any cleaning, possibly something to do with it being positive or negative.

Anyway, this fixed the problem and it now charges fine. I wouldn't have considered writing about this except for the fact that a friend of mine was also complaining about a Logitech mouse not charging and this fixed the problem for him too.

Update: It looks like all the commenters below have discovered a strange alternative way to get the mouse to start charging - give it a bit of a slam! Obviously at your own risk!

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  1. 1 Mr. 47(NL)

    Mr. 47(NL)
    25th December, 2007

    I did some research and found out the are more people having the same problem. There are even multiple videos on YouTube an Google Video about this problem. I tried cleaning first....... didn't seam to work, than I rocked and quickly put it in and out of its cradle and that fixed it! So its just a simple case of smudged contacts which I apparently clean by rubbing the contacts against each other! To everyone with the same problem:............. Clean the contacts with alcohol and/or scraping the dirt of. http://nl.youtube.com/watch?v=owZ7cJIA57I
  2. 2 Filip

    Filip
    23rd March, 2008

    Nice work. Anyhow, i would like to have a fix for the mouse since it really wierd sometimes. Feels like its not reading the surface as it's supposed to. Know a fix for this? I really wish that some good programmer could make a 3rd party application so you would'nt have to use that shitty SetPoint...
  3. 3 OsoMarron

    OsoMarron
    29th November, 2008

    heh. big problems usually do have silly causes, like this one XDAnd incredilate reply to filip, but bad reading could be due to improper surface or the mouse being next to a source of intense RF activity (a laptop transferring at full speed through wifi can interfere with (any) mouse signal)
  4. 4 Chris

    Chris
    12th December, 2008

    Good to know I am not the only one having problems with this awesome device... Mine has seemed to gradually lose its ability to charge over the past 3 months. My first concern was the contacts, i clean them, safely, all the time just to be sure, but that's not what it is for mine. Once I determined it wasn't the contacts, and could find nothing else, I simply slammed the mouse (bottom side down) on my desk, and WOW does it work like brand new again. I DO NOT ADVISE ANYONE "SLAMMING" theirs down, but it worked for me. (Symptoms: not charging, blinking red battery light, random green lights.)
  5. 5 Kalle Sandberg

    Kalle Sandberg
    14th December, 2008

    Chris:Thanks a lot mate! That cure seemes to have done the trick! :)I also cleaned the contacts without any improvement, but your SLAM treatment worked like a charm! Now i can use that money for better things then a new mouse.
  6. 6 StuPC

    StuPC
    24th December, 2008

    That's bloody weird, but the SLAM treatment and a quick wipe of the contacts has worked for me, too!Doesn't really fill me with confidence about the build quality of my MX though. :-(
  7. 7 Wojtek

    Wojtek
    16th January, 2009

    yup, slamming worked for me too :) amazing!
  8. 8 sergiodongala

    sergiodongala
    20th January, 2009

    Its amazing,I was about to buy a new one and you know what?THE SLAMING IS GOOOOOOOOD, it worked!!!!!!!!you are a genius!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  9. 9 ComputerNerd

    ComputerNerd
    24th January, 2009

    I too found the slamming trick to work. I read somewhere someone removed and replaced the battery with good success. Slamming would in effect move the battery around.
  10. 10 ROBERT HURL

    ROBERT HURL
    7th February, 2009

    BANG! MAN :) is onto some think ,after trying contacts for over halve an hour i gave mine a small love slap at the same time switching mode on and off before and after little love slap(LITTLE TAP) mines charging now ty guys little fiddle and it comes back to life :-)
  11. 11 RPD

    RPD
    14th February, 2009

    Cool, it worked for me to.
  12. 12 Dave McLaughlin

    Dave McLaughlin
    16th February, 2009

    The banging it on your desk was an interesting idea but being an electronics engineer I decided that the open it and see what was wrong was a better idea seeing as my warranty had expired anyway! After removing the feet carefully I removed the 4 screws holding it together. Actually, your idea of banging it upside down works because the battery itself is only held in place by a plastic clip and there is 3 metal spring contacts making the electrical contact to the battery. In doing so, you likely caused a slight shift and a better contact from the resulting wiping of the contacts. I removed the battery from the holder and cleaned the contacts with a non abrasive cleaner. Re-inserted it and now the battery state was showing 2 bars whereas before I opened it was on RED. It now also charges fine too.I would put this all down to a design fault but no one which you would see as a design engineer but a good lesson for me too. Something I will be on the lookout for any future battery powered equipent that is fixed with no user access.
  13. 13 Betty Bundoc

    Betty Bundoc
    17th February, 2009

    Wow, this post is amazing, the love tap actually worked for me too. Thanks for the advice. :)
  14. 14 The_Dragon_No1

    The_Dragon_No1
    19th February, 2009

    wow, yeah ^^ .. typical Donald Duck fix.. AND IT WORKS :Dslam slam, thank you mam :D:D
  15. 15 Slammy

    Slammy
    19th February, 2009

    1 on the slam. Works better than when I first got it.
  16. 16 Scott Sutherland

    Scott Sutherland
    27th February, 2009

    I'm trying the "slam" technique. Several times I've "slammed" it (each time successively more aggressive in the slamming action). When put into the charger, it starts out looking like it's charging (blinking green lights), but after a while I'm back to blinking green followed by flashing red. The latest slam seems to be holding (for now), but time will tell. I'll post an update as soon as I know. If it fails, I'll open it up and perform Dave's "surgery" to see what happens. Stand by...
  17. 17 Scott Sutherland

    Scott Sutherland
    27th February, 2009

    UPDATE: the slams continued to fail, so I performed Dave's "surgery". In extracting the battery inside the mouse, I snapped off on of the little plastic bits that helps to hold the battery in place. But I did the cleaning
  18. 18 Scott Sutherland

    Scott Sutherland
    27th February, 2009

    Hmmm... last response got truncated. To resume...I did the cleaning, reassembled the "patient", put it back into the charging stand and watched anxiously as my green lights blinked. No red lights, and not long afterward, Set Point said my batteries were fully charged!! Woo-Hoo!! Thnaks to all, and especially to Dave!!
  19. 19 Geoff

    Geoff
    7th March, 2009

    I can't believe that 'Slam' technique actually worked for my mouse! My mouse is now back to it's fully recharged state!I did try opening the mouse, but the battery seemed to be totally locked into place, and I didn't want to break any of the plastic pieces holding the battery in place, so I just put it back together and slammed the mouse. The rest as they say, is history...
  20. 20 Mark

    Mark
    16th March, 2009

    3 words.. Slamming does work
  21. 21 haphazard

    haphazard
    22nd March, 2009

    i add a bit of water to the gold contact points on the bottom of the mouse to increase the conductivity. it works well.
  22. 22 woot

    woot
    4th April, 2009

    Worked, for now. i'm not sure if this will hold.
  23. 23 Igor

    Igor
    16th April, 2009

    Slamming does work! Thanks Chris from Russia.
    Stupid Technical Support Logitech for CIS countries via Poland (
  24. 24 Ron

    Ron
    27th April, 2009

    I was skeptical about slamming, but having cleaned contacts several times figured nothing to lose. Slammed it a few times and no change. Decided, after reading all posts, to slam harder. Did that several times and now appears to be charging as it should. Amazing
  25. 25 Josh

    Josh
    27th April, 2009

    I tried scraping it with my fingernail.. slamming it.. didn't work. But then I got some alcohol and rubbed it on the mouse's 2 plates, and now it works fine.
  26. 26 Angie

    Angie
    18th May, 2009

    Awesome Awesome Awesome, I did what Dave said, and Voila, my mouse is working like a charm!! Thank you so much!!!
  27. 27 Kev

    Kev
    31st May, 2009

    Thanks Dave, taking the mouse apart and cleaning the battery contacts worked!
  28. 28 Rory Kinsella

    Rory Kinsella
    10th June, 2009

    For nearly 6 months i have been frustrated with a barely charged mouse, when i read this article i was lyk pow!
    I slammed my £60 MX on the desk and hey presto it is charging! Cheers Guys!!
  29. 29 Daniel

    Daniel
    15th June, 2009

    I too was experiencing the alternating green charging leds and red blinking led. Did some googling, and the first hit was some guy describing a solution where you had to build a resistor in the mouse. I'm not feeling confident doing that. Then I hit this blog. I slammed my mouse.... and it worked! It's almost comical :P
    Thanks y'all!
  30. 30 Todd

    Todd
    28th June, 2009

    unbelievable - I thought you were all perpetrators of a scheme to destroy everyone's MX revolution. But holy cow if slamming into the ground (fairly hard) didn't fix it. I tried 8 other slams of varying degrees. The Final throw into the ground fixed it. Thanks guys.
  31. 31 monoblocks

    monoblocks
    5th July, 2009

    It's been a problem with earlier Logitech wireless mice as well; I've got an older MX1000 that's suffered with too soft overly coatings on the power contacts that have worn down over time, exposing the underlying metal to oxidation and/or dirt buildup. I've used electrical contact cleaner for the past two or three years to get the mouse charging; it seems to last better than an alcohol cleaning, but I still have to do this about every 3-4 weeks.
  32. 32 Socalsmith

    Socalsmith
    7th July, 2009

    Slam worked for me too!
  33. 33 Charles

    Charles
    11th July, 2009

    The "banging it on the desk" trick worked for a few weeks for me, then I started to get the red light again. I have some experience in electronics repair and thought that the problem might be a bad solder joint. So I opened it up and looked closely where the contacts are soldered to the board. It turns out that the solder had cracked on one. So I got out the soldering iron and remelted the solder connections. Now it works fine.
  34. 34 West

    West
    12th August, 2009

    You can now get a replacement battery for the LOGITECH MX Revolution (a lithium battery 600mAh) here Logitech MX Revolution battery
  35. 35 Sergios

    Sergios
    16th August, 2009

    Slamming it on the desk few times (each time harder and harder) did the trick. Now my mouse is charging normally!
  36. 36 Jon

    Jon
    19th August, 2009

    Holy sh1t! Slamming did it for me too! Progressively harder until it registered did the trick! Thx guys!
  37. 37 Luke

    Luke
    21st August, 2009

    Comment number 12 is the most sensible and reliable way to fix this issue.

    Banging your mouse just slightly moves the internal battery to circuit connections and any dust or dirt between the connections. So you might get a quick fix or just bash your mouse and break something else.

    It's best to take the mouse apart and clean the three contacts on the battery, and the three spring loaded contact points with a mild solvent like isopropyl alcohol which will evaporate and not cause a short when you re-assemble.

    Also take note that when you take apart the mouse there is a ribbon that connects to the upper half of the mouse to the base. At the back of the top part of the mouse is a small contact point that completes a circuit by touching one of the charging contacts on the inside of the lower portion of the mouse.

    This is where a lot of dust and dirt easily accumulates and might be the most common root of the charging problem because it isn't spring loaded and not a very large contact surface.

    I did this simple cleaning and after turning back on my mouse noticed a jump from one bar to two when I turned it back on. Letting me know power flow was less impeded by any resistance. Then I put it on the charger and went through a full charging cycle.

    So this is a tested and proven method. Only thing difficult is remounting the silicon feet. If you were very careful in removing them you should still have the double sided adhesive.

    If not a good double sided adhesive sheet or most likely basic tape from 3m and a thin spacing material like craft paper or stiff fiber board will work great after you clean up the feet and their recesses.
  38. 38 Tiziano from italy

    Tiziano from italy
    17th September, 2009

    Slam is working! thanks from italy
  39. 39 flash

    flash
    18th September, 2009

    Slam not working for me!:(

    When I have disassembled the mouse have found out that the battery is on a place. I have cleaned all contacts and have checked up solder. All is normal, but the mouse still doesn't work: (

    Think it's necessary to me to buy the new battery?
  40. 40 happy with his  mouse

    happy with his mouse
    26th September, 2009

    i tried everything.. i even opened up the charging unit and put it back together.. not knowing how it would help i just wanted to make my mouse work.. i decided to give up and as i was about to put it away i slammed it against the wall and shoved it into the charger just to make sure it deffinately wasnt charging.. and much to my suprise it started charging again!!
    SLAMMING WORKS !
  41. 41 Leooow

    Leooow
    29th September, 2009

    WOW...I didn't thought it would work. But a nice little tick on the desk and it was good to go. Weird though that it stopped working
  42. 42 Andy Calnan

    Andy Calnan
    9th October, 2009

    Cleaning and slamming did NOT work for mine, but the mouse is very easily opened up. You remove the top wide plastic foot, and the lower two of the 3 small plastic foot pads. You unscrew 4 screws, and viola, it opens up and you have easy access to the battery. I carefully pulled the battery out and seated it back in, and PRESTO it charges again. Very quick and very easy. If you're smart and do it with a good knife, you won't ruin your plastic feet like I did, but those are CHEAPLY replaced and with better quality feet too!
  43. 43 Renwick Hurst

    Renwick Hurst
    10th October, 2009

    OMG i was ready all these comments on slamming and giving it a love tap....i said how stupid, then i took my MX Revolution mouse and slap it against the palm of my hand and put it in the cradle and its working OMG, they just need to fix thise problem or not lol i still cant believe it after all this time.
  44. 44 vicmpen

    vicmpen
    17th October, 2009

    Well all i had to do was switch the mouse off and charge it while it was not on ! and it worked! :D
  45. 45 MIKE

    MIKE
    5th November, 2009

    THE SLAMMING TRICK WORKED FOR ME THE SIMPLEST IDEAS ARE ALWAYS THE BEST
  46. 46 Matt Cheney

    Matt Cheney
    6th November, 2009

    I came across this site, slammed the mouse on my thigh a few times and bam! No more flashing red light. Brilliant!
  47. 47 John

    John
    6th November, 2009

    I had the same problem, turned the mouse up and banged the bottom of it slightly against my desk and it WORKED! I can't believe it. The mouse is charging now without issue. Surprising.
  48. 48 Brian

    Brian
    7th November, 2009

    same problem and fixed it by cleaning the contacts. Thanks guys
  49. 49 Adam

    Adam
    9th November, 2009

    Rediculous!!! I am a true believer Mr. Jones.... I found this post, smacked my BIA#*H up and low and behold... well I'll be.
  50. 50 Luke

    Luke
    16th November, 2009

    If you look at my previous post about taking it apart and cleaning that worked well for about 6 months. Eventually the problem started coming back and was fixed easily enough by using it and draining the batter a bit more, but it was clear the battery was just going out. Charge times seemed to fast and should have held a charge longer.

    Luckily Logitech sells the exact Lion battery you need $5. It's the same replacement battery you find for the G7 cordless mouse and it's identical to the one found in the MX Revolution. You can find it under support replacement parts for the G7 on the Logitech site.

    For $10 in total and some time I should get years more use out of this mouse. Good as new.
  51. 51 Andy

    Andy
    22nd November, 2009

    I've had this mouse sitting in a dusty cupboard for ages. Finally got bothered enough about it not working to try and fix it.
    Fitted a 30 ohm resistor into the charger (no effect), and then out of desperation, took the mouse apart, took the battery out, cleaned the contacts and reinserted it.

    The mouse has been charging happily for a couple of hours and is now 60% charged. Woo!
  52. 52 Mike Papa

    Mike Papa
    27th December, 2009

    Ok, the slaming worked for a while, but then the problem would still persist after slamming. Also from time to time the mouse would refuse to work at all. (Keyboard ok) After a few seconds the cursor would again be controllable. So I opened the mouse up (4 screws under rubber pads) and took a look a the battery. My battery is connected to the curcuitry with a small 4 pin connector. It was obviously not pushed into the socket far enough. I pulled it out and then reconnected it, pushing it in all the way. THREE weeks now and charging and mouse operation as been flawless!
  53. 53 Taylor

    Taylor
    30th December, 2009

    I've had another problem with the MX. I used to have the charging problem but cleaning the contacts and things like that have worked, but now it suffers from a different problem.

    Now the left mouse button won't stay depressed when I push it. I have to admit that this mouse has served me well for quite a while now and with heavy gaming use but now it's quite annoying that my £60 mouse won't "drag" anything, instead it does a double click when I try. I can "sometimes" get it to drag but rarely.

    Anyone else experienced this at all, or anyone know a solution?
  54. 54 nythomas1

    nythomas1
    30th December, 2009

    Hey, i was afraid cleaning & slamming wouldn't work for me but it did! Thank goodness! I really need this mouse.
    My problem was similar to Chris'. While charging, the green lights would go up gradually but fall back on to a blinking red light. And then start again at green. At first I thought my battery was so depleted that it was taking 2 hours to get out of the red, which happens with my blackberry curve. But after that time i started googling and found this blog. As usual the comments are more useful than the blog itself.
    So conclusion: cleaning and moderate flat desk-slam worked perfectly. My lights turned green and don't go back to red.
  55. 55 Peter

    Peter
    2nd January, 2010

    I tried taking it apart by peeling off the feet first to get access to the 4 screws. Once the screws were off it was quite easy to take it apart. I cleaned the battery contacts on the inside with an eraser and then put it all back together. Now it's charging like normal in the cradle, with no flash red battery.
  56. 56 Marc

    Marc
    13th January, 2010

    Slamming Works!!
    I cannot just go out and buy a new mouse, sending out for service would take a month so I tried the slam, you don’t have to do a full rage slam, just a frustrated flat slam or three did the trick.
    Note: You might want to wait until everyone else is out of the office or announce your intentions beforehand.
  57. 57 Jay

    Jay
    16th January, 2010

    Thanks guys! I thought it was BS too, until I tried it. Just for the record, i only had to give mine a light tap , not really a "slam", and it's working again.

    Thanks to the guys who gave the advice in number 12 and 37 too!

    Awesome. I was really about to get PO'd of having to buy another $150 mouse and/or having to bitch at Logitech. lol. Now I can just get back to work.

    Cheers!
    Jay
  58. 58 marek

    marek
    17th January, 2010

    wow thanks guys.. i slammed it gradually harder and harder against the floor until it started charging and now it has green lights only.. i was just about to order a new performance mouse mx but it seems that this one has risen from the dead
  59. 59 jaro

    jaro
    22nd January, 2010

    I've had this mouse for 3 years now. The slamming seemed to work for a while, then it was back to red blinking again and no amount of slamming would help. So I took it apart, took the battery out, cleaned the contacts and put it back together. The battery contacts seemed clean and the battery was held in place quite well... but in any case taking it out and cleaning seemed to work. Hopefully it will keep working for a while :)
  60. 60 Rich V

    Rich V
    23rd January, 2010

    Bugger off... Had my MX Revolution in the trash and I was looking for an appropriate replacement. Came across this post and "slammed" my mouse. BINGO!
  61. 61 HK

    HK
    25th January, 2010

    I had "slammed" mine months ago, because of anger, and it worked. I just now found this forum because it seems to be temporary. It started again, and I slammed it again. No luck.
    I opened it up per comment 12, and I just took out the battery connection, gave it a little swipe with some alcohol, and put it back in. Works perfect again.

    BUT

    I was not very gentle in taking off the mouse "feet"/"skates" and they were ruined, which basically made the mouse not very usable for gaming.
    So, if you do this, Logi won't sell you replacement feet. I found these,

    ttp://www.corepad.com/index.php?pagina=artikel&id=44

    and

    http://www.slicksurf.com/

    Might help.
  62. 62 Stefan

    Stefan
    13th February, 2010

    thank you man.it ts work for me too.amaizing
  63. 63 Chuck

    Chuck
    14th March, 2010

    The MX Revolution main board inside mouse has a + and - connection to charge battery. The board to charging contacts are not hardwired. It is a contact point between the board and charge pads. Mine was not getting voltage past this point so I soldered in wires from board to gold charge pads. Problem fixed!
  64. 64 Abs for no abs

    Abs for no abs
    25th March, 2010

    hey guys i tell u what if this guys has the updated verison of the charging dock the cleaing method will work but
    for all the people that couldnt fix with the slaming or cleaing listen up...
    •Philips Head Screw Driver
    •Wire Strippers/Cutters
    •3 10 Ohm Resistors (or one 30 Ohm would work)
    •Solder and Soldering Iron
    •Shrink Tubing/Electrical Tape

    1. grab ur dock (unplug it off course)
    2. find the x marked spots underneth the cradle
    3. open it up (Philips Head Screw Driver)
    4. there should be two little Philips screws holding the curcit board in place
    5. now listen carefully there are two version of this dock
    . two black cabels stright from the adapter
    . a little connection attching the two wires comming from the Adpater
    carefuly deattch the postive side and add the 30omhs resistor (although 25 omhs will work but a much slower rate)
    6. solder the resistor and the positive wire togeather (tape up the exposed metal****** MAKE SURE U DO) or u can twist the wires together although i do not recommed it
    7. screw the screws back into place (if u do not wanna to get in a mess then email me abhi_the_man@hotmail.com)
    8. I do not take any reponsiblity for damage this process may cause (in saying so i have had no problems listed from pervisous people using this method)
    9. if u do not understand read the voltage rating on the adapters wire and on the back of the mouse.

    guys i am more then willing to help email me for more questions
  65. 65 flavio

    flavio
    31st March, 2010

    Lol... THe slam trick worked for me as well. Thanks guys.
  66. 66 triggle

    triggle
    14th April, 2010

    You don't need to open the base to fix using the resistor trick. You can get the power plugs at an electronics supplier and make a "pigtail" with the resistors in one of the leads to your charging base.

    30 Ohms did not work for me. It gave the red flashing light then the charge bars and repeated. I increased to 63 Ohms and it did work. Now there is no red light when charging.

    Just charging it now so in a day's time I'll know more.

  67. 67 seth

    seth
    24th April, 2010

    holy crap!! My MX has always had issues charging. Sometimes it would work but most of the time it would just blink red (from day 10). I was too lazy to deal with taking it back and would just wait for it to eventually charge.

    Slamming WORKED! i love you.
  68. 68 Remi

    Remi
    2nd July, 2010

    I completely laughed my ass off slamming down the mouse, putting it in the charger and watching it work again. If at first you don't succeed, resort to violence. Thanks for the help.
  69. 69 Wayne Hodkinson

    Wayne Hodkinson
    10th July, 2010

    I quite firmly placed the mouse in and out of the cradle approx 10 times, now she charges!

    Great because I have loads of work to do :)
  70. 70 Larry Eeles

    Larry Eeles
    14th July, 2010

    Well my mouse was doing the same thing. Though no chance that this will work. Well blow me... it only started charging. Old school bang fixes it! :D
  71. 71 Green Gecko

    Green Gecko
    14th July, 2010

    I have just successfully got my mouse charging again after over a year of it being finicky on the charge base and terrible battery life in general - it appeared the mouse was never charging properly. Like most people here the charging lights would escalate upward a few times, then the red flashing light of death would blink, then it would go back to green, etc. Except this last time the mouse never managed to charge at all so I decided to crack the thing open.

    I had a different fix to others because I seem to have the very latest version of this mouse. There are no contact points for the battery - it's now hardwired to a 3-pin socket on a red/yellow/black twisted cable, connected to the main board, so of course the "slamming" trick would never work for me, as it does for others by reseating the battery on the contacts slightly or knocking loose some dust.

    I used a flat-head screwdriver to tease off the lowermost two feet on the bottom of the mouse and the large one at the top. Try to do this evenly and slowly so you don't ruin the feet, as you can easily stick them back on after-ward with some glue. You'll need a 2.4 Phillips screwdriver to remove the four screws.

    Once the screws are out you should be able to just lift the mouse apart but BE VERY CAREFUL at this point as there is a thin and fragile RIBBON CABLE connecting the top and bottom half. Ribbon cables are extremely easy to tear and are nearly always impossible to replace. Breaking this cable will kill the mouse (when it's not connected the mouse won't turn on or charge). Carefully lay the top half of the mouse to one side of the bottom half and look where the ribbon is connected to the base. There are two black notches either side of the socket for this cable - carefully tease upward one side and then the other, then the other side etc. in a see-saw manner, prising with a flat-head screwdriver. This black notch thing just secures the cable in place - it doesn't click or swing off or anything.

    Once the two halves are seperated, I could only see two fault points with this mouse. One, ensure the power cable for the battery is securely connected. To be extra sure, tease it out with some tweezers or flat-head screwdriver, give it it a dusting with a brush, and reconnect it firmly.

    Second, something no-one has mentioned, is I noticed small copper contacts in three places - around centre-left on the base (where the thumbwheel fits), and on the top half's underside, one contact at the bottom and another under the opening for the scroll wheel. I noticed mine were dirty with black crud and dust. I think what these must be are contacts for electrical grounding, so thinking they might be screwing with electrical flow, I gave them a good cleaning and re-assembled the mice.

    When re-assembling again BE CAREFUL with the ribbon cable - I can't stress this enough as I've ruined a Logitech G15 and a DV camcorder by accidentally tearing these while trying to fix them. In a position you think is safe to not stress/pull the cable, re-insert the cable with the cable's golden contacts facing you / away from the mouse base, and tease the black securing wedges back down to hold the cable in. Then put the two halves back together and screw up the mouse.

    Before bothering to stick back on the feet, whack the charger on the mouse. If yours is like mine you should be happy to see the mouse charging properly again (make sure it's switched off - this mouse should be off when charging), with the green light flashing once, then escalating based on the amount of charge. Mine has been charging happily for about an hour now and has one light constantly lit - so it's working! :)

    Give it a few hours and if it's all okay stick back on your feet.

    I hope this helps anyone else trying to fix a recent MX Revolution as many of these suggestions are now out of date after Logitech's evident attempts to improve the mouse over the years.

    If it helps, here's my model info:

    Mouse M/N: M-RBQ124
    P/N: 810-000442
    PID: LZ847AC

    Charger M/N: L-LN13
    P/N: 810-000400
    PID: LZ829AC

    It's interesting to note, whereas my older Revolution charger (which works fine) has a removable power supply, this one is hardwired with a module fitted in the cable, probably a ferrite core (to reduce EMI/interference) or it could contain the resistor some people have built into their chargers.

    Purchased in the UK in 2009.
  72. 72 Green Gecko

    Green Gecko
    14th July, 2010

    For those who can't fix their charging my way, there is the resistor fix, described in excellent detail here by CooperBills:

    http://www.cooperbills.com/Projects/MXRevolution/

    However this requires a significant mod to your charge base, requiring soldering, and I wouldn't recommend trying it - especially on more recent models where Logitech may have made a similar fix already - with trying slamming/cleaning/reconnecting the battery cable first.
  73. 73 Ben Vallack

    the author
    14th July, 2010

    Wow, extremely detailed information Green Gecko - thanks for sharing.
  74. 74 Green Gecko

    Green Gecko
    14th July, 2010

    No problem, since this is the 2nd hit on Google for "MX Revolution fix" now (besides the relatively extreme resistor fix) hopefully some other people will find it.

    Just thought I would post an update that my MX Rev has since fully charged. Setpoint says so and gives an estimate of 18 days battery life!! I've never seen it that high before. :)

    I guess it's possible the dirt even got in there during manufacture and it was never actually working to begin with..
  75. 75 Houston

    Houston
    27th July, 2010

    After reading the 40 or 50 posts saying "Slamming" did the trick, I reluctantly attempted it.... and what do ya' know it works!
    Its actually just a frustrated flat tap, not an all out SLAM.
  76. 76 Kevin

    Kevin
    24th August, 2010

    Hey im having trouble with my mouse, i tried the slam, tried removing the battery and cleaning it, the gold connectors at the bottom of my mouse looks like its been warn down and some of the gold is actually gone, possibly causing it not to connect to the base. Is it possible to fix this?

    thank you.