iFixit - Answers With Device "Mouse"

Logitech MX Master 3S: MX Master 3S Won't Power On with New 3.7V Battery - No LEDs or Charging Light

Mon, 06 Jul 2026 11:29:40 -0700

My Logitech MX Master 3S randomly shut down and won't turn back on. I found the original battery was depleted to 0.5V. I replaced it with a new battery which is outputting 3.7V, but the mouse still shows no signs of life—no LEDs turn on even when plugged into a USB-C charger. I have verified that the interconnect ribbon cable and battery connector are seated correctly.

I have a multimeter and would like help identifying potential blown SMD fuses, bad voltage rail test points, or common failure points on the motherboard that would cause a total power failure despite having a good battery voltage.

I've attached high-resolution photos of the motherboard (front and back) and the USB-C daughterboard. Any guidance on where to probe would be greatly appreciated!

⟐ Commented July 06, 2026 at 11:29 MST

Logitech MX Master 3S: How can I tell when it is fully charged

Sun, 05 Jul 2026 06:13:50 -0700

How can I tell when it is fully charged

⟐ Answered July 05, 2026 at 6:13 MST

Logitech Pro X2 Superstrike: physical clicking issue its really bad

Sat, 04 Jul 2026 22:09:41 -0700

so basically i was watching youtube until the battery died so i went to charge it up until the triggers on both clicks are not going down physically i think i might have to do somethin about the spring or something idk but i need to know how to fix this

⟐ Commented July 04, 2026 at 22:09 MST

Logitech MX Anywhere 3: Click is not working

Tue, 30 Jun 2026 02:14:40 -0700

Hello everyone!

Well, I have MX Anywhere 3 and I have now this issue: left side is not clicking. You need a stronger click/click in a precise spot of this side of the mouse to make the click work. I have this product for more than 5 years now. I saw there are some videos about how to fix it at home... and I am a bit afraid buying the tools/paying someone to fix it and then having the issue again...
Do you guys have any tips or instructions that I could follow to solve this problem? Have you faced this problem as well? Is really worth fixing it?

Thank you very much.

⟐ Commented June 30, 2026 at 2:14 MST

HP 280 Silent Wireless Mouse: Mouse not working what do I do

Sun, 28 Jun 2026 17:16:04 -0700

Mouse not working. How do I fix it

⟐ Commented June 28, 2026 at 17:16 MST

Logitech G600 MMO Gaming MSE: Older product different description

Sat, 27 Jun 2026 16:39:05 -0700

I am working on my wife's gaming mouse. It is marked as a G600 and I found a page for it. But the P/N and description are slightly different.

1) This version has a braided cloth cover.

2) P/N and S/N are on a tag attached to the cord vice underside of mouse.

3) P/N: 810-002849.

The mouse is not responding to some buttons, and I would like to find a way open it up to test them. I could splice in a new cable, but that is a radical solution which may not fix the issue.

HP Z3700 Dual Mouse: My mouse got damaged after constant falling

Wed, 24 Jun 2026 22:59:10 -0700

my mouse kept on falling now it only lights on but no response

⟐ Answered June 24, 2026 at 22:59 MST

Logitech MX Master Series Mouse: Copper contact pads ripped

Wed, 24 Jun 2026 02:35:48 -0700

Hi All. My very first post here. Hope to get some advice from the community here.

I received an MX Master 3S that could not power up. I disassembled it and realized that the 10UH 100 power inductor is gone, and the contact pad highlighted in red was ripped off. I will try to take a close-up photo of it when I get home in a few days.

I have attempted soldering contact pads on bigger boards, but trying it on a mouse would be a first for me. I wonder if anyone here has experience in repairing such problems. Any advice would be appreciated.

⟐ Edited by author June 24, 2026 at 2:35 MST

Logitech G502 Hero: Can't click and drag with my mouse

Mon, 22 Jun 2026 06:58:45 -0700

My G502 Hero mouse either doesn’t register single clicks or it double clicks and almost never lets me drag items on the screen. I’m guessing it’s a hardware button problem, but I’m no sure. Can it be fixed?

⟐ Commented June 22, 2026 at 6:58 MST

Logitech MX Master 4: Can the battery be charged

Fri, 19 Jun 2026 09:46:23 -0700

Can the battery be charged

⟐ Answered June 19, 2026 at 9:46 MST

Logitech MX Master 3S: Why my mouse does not connect to my PC?

Tue, 16 Jun 2026 08:03:46 -0700

I had an issue with the mouse, left and right click doesn't work most of the time and i used the electronic dry cleaner but i turned on the mouse before the cleaner dries out so I replaced the battery. after replacing the battery, the mouse fails to connect to my PC (my PC can't even discover the mouse) using Bluetooth and using the dongle. I connect it directly and the same issue even though there is a red light flashing when i turn on the mouse.

⟐ Answered June 16, 2026 at 8:03 MST

Microsoft Bluetooth Ergonomic Mouse: Need help with broken mouse wheel

Fri, 12 Jun 2026 08:26:03 -0700

I would like to replace a mouse wheel on my mouse which is broken. Does anybody know where I can get a replacement part for this? I know it will be hard to find a part but I do love this mouse and have used it for years. Thanks in advance!

Logitech G903: What type of switch is used for the side buttons?

Thu, 11 Jun 2026 14:37:23 -0700

I need to replace the switches for the back and forward buttons on the left side of the mouse. The back is double clicking (first time I've had that switch do it) and I'm having trouble locating it online.

Logitech G502 Hero: Right clicker is totally broken and not working

Thu, 11 Jun 2026 01:15:15 -0700

Right click is not working it has bulged upwards and does not register clciks

Logitech G Pro Wireless: G pro wireless right click problem

Thu, 04 Jun 2026 23:28:44 -0700

My g pro wireless have problem if i shoot in game it misses one shot or while spraying it stops and continues what do i do

Logitech G903: Right click stopped working

Wed, 03 Jun 2026 09:20:17 -0700

I have had my mouse for awhile and I would get if it stopped working from old age but I feel like this is not the issue because it comes and goes whether it works or not but it hasn't been right clicking for a little while now and I am curious if anyone else has had this issue? When it started I had not been using my mouse very often and there was nothing that could've happened damage wise to break it and all my firmware is up to date on it so if anyone has any suggestions I would love them!

⟐ Answered June 03, 2026 at 9:20 MST

Dell MO56UC: Left click not working ,

Wed, 03 Jun 2026 05:41:49 -0700

Y left click not working and not pressing

⟐ Answered June 03, 2026 at 5:41 MST

Razer Orochi V2: Why is my left mouse button stuck!

Tue, 02 Jun 2026 18:17:23 -0700

My left mouse button got stuck today. Can I fix it or I'll have to get a new mouse?

⟐ Commented June 02, 2026 at 18:17 MST

Logitech G502 X Gaming Mouse: My mouse is not working accurately, the courser is not moving accurate

Fri, 29 May 2026 08:28:00 -0700

My mouse is not working accurately, the courser is not moving accurately so can anyone help me to fix it?

Logitech M585 MULTI-DEVICE: Realign right button mouse felll onto the floor

Fri, 29 May 2026 06:46:03 -0700

How can I open my mouse to realign it since it fell to the floor and nLW the right click button doesn’t click not sure if it works rather.