iFixit - Answers With Device "Logitech MX Mechanical"

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 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 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?