Introduction

I've noticed that I started having issues dragging windows. At first I thought it was a software issue since I recently switched from Windows to Linux OS. But the issue persisted on both OSes so it was clear that it was a hardware problem.

So that is how the saga of trackball mouse disassembling started. The rest is history!!!

This guide will help you to disassemble your very own Logitech M570 and guide you through switch replacement. Note that you will require soldering skills to replace switches. You might get by without soldering skills if you are after replacing the ball sensor.

Remove tracking ball Turn power switch to the off position Open battery door
  • Remove tracking ball

  • Turn power switch to the off position

  • Open battery door

  • Remove AA battery

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Remove 3 pads as shown in the picture
  • Remove 3 pads as shown in the picture

  • Unscrew 5 bolts using phillips screwdriver

  • The last screw is hidden under the battery label. You will have to poke a hole to get to it.

  • Use guitar pick to open the body

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Lift the latch up and pull flex circuit out of connector. Detach tracking ball sensor. Unscrew first screw and detach little PCB Take the other 3 screws out. The last screw is hidden behind a capacitor in the picture
  • Lift the latch up and pull flex circuit out of connector. Detach tracking ball sensor.

  • Unscrew first screw and detach little PCB

  • Take the other 3 screws out. The last screw is hidden behind a capacitor in the picture

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Carefully remove PCB. Take care not to bend battery connector Remove power switch. Otherwise it might fall out and you will never see it again...
  • Carefully remove PCB. Take care not to bend battery connector

  • Remove power switch. Otherwise it might fall out and you will never see it again...

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Ass you may see one of the switches is completely busted. It has to be replaced! There are few replacements out there. I've used this one. But you might want to use original one. Or the rival one. It really does not matter much. The difference is operating force. The original one comes with 75 gf which gives lighter clicking action. But I went with 150 gf for the replacement since those should last longer...
  • Ass you may see one of the switches is completely busted. It has to be replaced!

  • There are few replacements out there. I've used this one. But you might want to use original one. Or the rival one.

  • It really does not matter much. The difference is operating force. The original one comes with 75 gf which gives lighter clicking action. But I went with 150 gf for the replacement since those should last longer...

  • Take old switches out. Might be a little tricky! You might want to use multiple soldering irons to heat all 3 pins at once. Or heat gun. The choice is yours. Just be careful not to burn yourself! FYI, this is probably not the best project for the first soldering experience!

  • Solder new switches on.

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Conclusion

To reassemble your device, follow these instructions in the reverse order.

3 other people completed this guide.

Kirill

Member since: 04/11/2017

469 Reputation

2 Guides authored

3 Comments

Instructions are very clear and accurate. The most difficult part of this repair is de-soldering the switch, additional information is needed for this step.

Hugo Castro - Reply

Yeah, you either have to use 2 irons to apply heat to 3 pins at the same time. Or take apart body of the switch and cut one of the pins from the body. That way you can use one iron to apply heat to 2 pins at the same time to get it detached from PCB

Kirill - Reply

Folks, use a solder sucker and a solder wick. There should be many articles out there on using solder (extractor) sucker and wick. But basically you melt solder , solder sucker sucks up the most of it (Put the tip right over the end of the metal leg RIGHT after melting) All has to happenen very quickly.

Then the solder wick, you rub over the metal pins using the solder iron to push it along the PCB around the pins and the switch will just drop out.

No offence to any one but the article author did say not advised for your first solder experience, and using solder wick etc would be a veteran solder master trick.

https://www.google.com/url?sa=t&rct=j&q=...

john sloan - Reply

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