iFixit - Answers With Device "Logitech MX Series"

Logitech MX Keys: How does this keyboard detect my hand?

Fri, 14 Nov 2025 08:14:30 -0700

The Logitech MX Keys keyboard has a feature that will light the backlit keys when your hand is in proximity to it.

I can’t see any sensors and wondering if it’s some kind of magnetic field detection?

⟐ Edited November 14, 2025 at 8:14 MST

Logitech MX Keys: I need a replacement left shift key

Fri, 17 Jan 2025 01:50:30 -0700

I need a replacement left shift key

⟐ Commented January 17, 2025 at 1:50 MST

Logitech MX Keys: Logitech numbers keypad keys not functioning

Tue, 14 Mar 2023 12:18:23 -0700

Period and hyphen keys on numbers pad not working

⟐ Answered March 14, 2023 at 12:18 MST

Logitech MX Mechanical: Charges, but no power?

Fri, 14 Nov 2025 08:27:05 -0700

Hi,

I came into a MX Mechanical (full size) at a local discount store, and though new in box upon opening it revealed a dent on the top right corner. That established, the device takes power and has a full battery, the LED pulses when charging, but the on switch doesn't seem to serve any function, as it doesn't present itself for discovery. I've tried Bluetooth on three different devices, the included bolt receiver and an older logi unifying receiver all to no avail. I've gone as far as dissembling the device, and though the brown cable does appear a bit pinched, it isn't by any means (visibly) severed. I've tried the Esc+O (2x), Esc+B, reset along with Esc+Fn all to no avail. I'd appreciate any guidance!

⟐ Answer accepted November 14, 2025 at 8:27 MST

Logitech MX Keys: Backlight cycling nonstop why?

Tue, 18 Mar 2025 01:45:50 -0700

My 2nd MX keys keyboard with same issue developed after few months. Backlight cycling on and off regardless of time of the day which drain battery really quick. Looks like common issue, found some videos on YT. Fault lay in proximity sensor that can not be disabled by software or key combination without completely disabling backlight which I want to keep. So far I tried.

latest firmware
blow air to clean dust (sometimes help for little while)
turn off&on power
change to bluetooth connection
change RF receiver

My fix was to disconnect one of the wires inside of keyboard to totally disable proximity sensor.

Logitech do not want to own the issue.

⟐ Answer edited March 18, 2025 at 1:45 MST

Logitech MX Keys: MX KEYS S Battery (is it the same as the MX KEYS model?)

Fri, 14 Nov 2025 08:26:15 -0700

I have a Logi MX Keys S (Model YR0073) keyboard that's having serious battery issues. I'm trying to find a definitive answer as whether the replacement battery part and the process are the same between the original MX Keys and my current model? If anyone has any good info I'd greatly appreciate the help!

⟐ Edited November 14, 2025 at 8:26 MST

Logitech MX Keys: Replacement MX Keys Body Kit

Fri, 24 Jan 2025 08:35:44 -0700

Hi, the top rightmost corner of my Logitech MX Keys broke (see attached). It is the only issue with my otherwise pristine keyboard.

I read that you've just started offering all OEM parts for this product and was hoping to buy a replacement body kit (I believe that's the correct term).

Where on your site might I find this part?

Many thanks, in advance, for your help!

Logitech MX Mechanical: Has anyone found a source for keys?

Sat, 06 Dec 2025 00:54:41 -0700

The ctrl key broke off. Looking at its design I suspect this is fairly common given that the attachment for the key is only like 4mm wide and will have a lot of leaver force if the key is hit off center. Has anyone found a source for replacement keys?

I contacted logitech and they do not sell replacement keys.

⟐ Commented December 06, 2025 at 0:54 MST

Logitech MX Mechanical: If you do not connect the ribbon cable does it kill the keyboard?

Tue, 30 Jan 2024 14:07:10 -0700

I was doing some repairs to my keyboard. It was working great, I needed to install the middle frame so I re-disconnected the ribbon cable and assembled everything, upon reassembling I forgot to connect the ribbon cable before connecting the battery, I realized the mistake, disconnected the battery connected the ribbon cable, and the keyboard acted like it was charging but was losing battery rapidly, pulled everything back apart checked the connections again and found that the connections were good but the device slowly died, and would not take a charge.

⟐ Answered January 30, 2024 at 14:07 MST

Logitech MX Keys for Mac: Key repair for Logitech MXKeys Mechanical keyboard for Mac?

Fri, 13 Mar 2026 05:18:16 -0700

Can I get my Logitech MXKeys Mechanical keyboard for Mac repaired? The right hand arrow key snapped off by brushing the edge of my palm across it. I'd like to have the switch removed and a new one soldered in with a new key cap. How can I get this done?

Thank you

⟐ Commented March 13, 2026 at 5:18 MST

Logitech MX Keys for Business: How to clear the dust in the keys

Thu, 09 Oct 2025 22:00:26 -0700

this keyboard kept lots dust in the small gap around the keys , how to open it and clean the ash?

⟐ Answered October 09, 2025 at 22:00 MST

Logitech MX Keys: Why did the backlight of my MX Keys stop working?

Mon, 09 Jun 2025 23:07:54 -0700

My Mx Keys has been functioning normally, except for the back light. All of a sudden, the keyboard no longer turns the back lights on.

The only lights being triggered correctly are the ones found on the upper left corner of the caps lock key and the three keys used for switching between devices.

If anyone can advise on what can be possibly done to check the problem with the backlight layer, please do.

⟐ Commented June 09, 2025 at 23:07 MST

Logitech MX Keys: Unable to change Capitals to small on my MX Keyboard. Caps lock KEY

Fri, 14 Nov 2025 08:32:13 -0700

I have been trying to contact you many times, I have asked machine various times. I purchased my MX Keyboard Direct from you. The “caps lock” key does not illuminate. You may say my Warranty has run out, but it was live when I started to try and contact you, over the last year. Your question pages must be full of my question. But no one ever answered. So with this new page I will try again. “HOW CAN I CHANGE THE caps lock KEY TO ILLUMINATE AND CHANGE FROM CAPITAL TO SMALL PRINTING? Thank you. Brian

allt4587@gmail.com

⟐ Edited November 14, 2025 at 8:32 MST

Logitech MX Keys: I need to change the USB C port.

Fri, 27 Sep 2024 16:58:10 -0700

Can you tell me what is the replacement part number for the USB C port on the keyboard? The black color portion inside the port is broken and I will need to replace the either 14P USB C receptacle. Is there a part number for this that you can provide?

⟐ Answered September 27, 2024 at 16:58 MST

Logitech MX Keys: The clip at the top of keyboard button is Broken.

Mon, 24 Jun 2024 21:10:28 -0700

Hi, I would like your help to fix the clip at the top of keyboard button is Broken.

I'm attached picture to you for my problem.

⟐ Commented June 24, 2024 at 21:10 MST

Logitech MX Keys: Mx keys rubber feet replacements

Tue, 05 Dec 2023 14:59:10 -0700

Do you carry the replacement rubber feet for MX Keys?

⟐ Answered December 05, 2023 at 14:59 MST

Logitech MX Keys S: Replacement Feet for Logitech MX Keyboard S

Thu, 13 Nov 2025 07:41:37 -0700

I've lost the rubber foot under the ctrl-start-alt buttons. Does anyone know where to get a replacement? If I had lost it within the first year, they would have replaced the keyboard, but otherwise no rubber feet in parts stock.

⟐ Edited November 13, 2025 at 7:41 MST

Logitech MX Keys: The Shift key stopped working.

Mon, 16 Dec 2024 23:38:49 -0700

The Shift key got stuck due to some rubbish getting caught in it, and when I removed the Shift key to remove the rubbish and tried to put it back in, the Shift key stopped working. Please tell me how to fix it.

Logitech MX Mechanical: Backlit keys not working

Fri, 15 Nov 2024 13:13:07 -0700

They backlit keys are not working. Is this an issue with the battery and can it be replaced?

MX Keys Mini: Z and R buttons trigger additional keys (FN keys to be specific)

Fri, 30 Aug 2024 16:34:12 -0700

which part is bad if I press the Z button and F3 gets triggered too? How do you fix this?