iFixit - Answers With Device "Logitech K800"

Logitech K800: What to do about spilled wine on wireless keyboard?

Fri, 14 Nov 2025 08:22:59 -0700

Just did this to my Logitech 800 ( With white wine ) - I flipped it & then wiped of as much as I could ... but now the returns from keystrokes are - erratic.

Will need to get into it, for a detailed wipe down ...

AND

How do I do this? How do I get into it?

⟐ Answer accepted November 14, 2025 at 8:22 MST

Logitech K800: letter lower case a sticking on Swedish K800 Keyboard

Sun, 29 Sep 2024 05:23:59 -0700

The letter a on this K800 on boot up of the computer stays on eg aaaaaaaaaaaaaaaaaaaaa etc no other letter

until another character is keyed in eg an S so you get aaaaaaaaaaaaaaaaaas and then the letter a wont work till the keyboard is switched off then back on and you get the letter a...aa again.

I have taken the A cap off the keyboard and cleaned around underneath but its still stuck so suppose the microswitch/ contact/ logic gate is permenantly closed. Without a disassembly protocol/circuit diagrame or spare parts available can this be fixed?

!!!!!!!!!!!!!!! I should add that using another standard MS keyboard all characters work properly but no access to Swedish spcial ones !!!!!!!!!!!

⟐ Commented September 29, 2024 at 5:23 MST

Logitech K800: Where can I find replacement keys? (Logitech K800)

Mon, 05 Feb 2024 16:55:12 -0700

My right shift key on my K800 is broken. One of the tiny tabs that holds it in place gave out. I contacted Logitech "support" and when i got through the multiple levels of AI and talked to a person, they told me they don't stock spare keys.

Seems like a giant E-waste problem to me. Its a simple fix to replace the broken key, but they'd rather me toss this in the garbage and buy a new one, but it won't be from Logitech, I can assure them of that.

If anyone knows where I can get a replacement key, it would save some E-waste.

No E-waste recycling centers closer than 75KM away where I live.

⟐ Commented February 05, 2024 at 16:55 MST

Logitech K800: Backlight on/off becoming less sensitive over time

Sat, 30 Sep 2023 23:37:19 -0700

As above, is there anything I can do to improve the sensitivity of the keyboard? It used to be that as my hands neared the keyboard, the backlight would come on, but nowadays if have to physically touch the keyboard, and even then I have to sort of wipe my hand from left to right to get it to notice my hand and turn the backlight on. I'm guessing there's some kind of sensor somewhere that's getting blocked over time?

⟐ Commented September 30, 2023 at 23:37 MST

Logitech K800: Replacing soldered in battery

Fri, 14 Nov 2025 08:04:07 -0700

I have the newer Logitech K800 wireless keyboard which no longer has replaceable rechargeable batteries. The Battery compartment has the same cover has the older style but no access to the battery compartment. I believe the battery is now soldered to the motherboard. Has anybody pulled apart this newer keyboard and replaced the rechargeable battery.

⟐ Edited November 14, 2025 at 8:04 MST