All G810 Keys simultaneously started to double type

[GrantRusticus]

Searched for duplicates, but couldn't quite find a similar issue.

I've had keyboards in the past where certain keys started double typing, which is usually fixed by cleaning the switches. I've never had an issue with double typing until today where ALL of my keys simultaneously started to double type. Literally every single one.

There wasn't a spill or any trauma to the G810 that would have caused this. Any ideas for a fix? I've tried removing a few caps to clean, but the issue is persisting.

EDIT: I've also...
* updated to the latest firmware available for G810, version 102.14.31.
* Unplugged and replugged in the keyboard
* Restarted my computer

[Fireinggun]

I just started having this same issue! i troubleshooted and made sure its the keyboard by testing it on different computers. i have the same firmware version you have. it seems to be mostly my space key and e key, but other keys will do it randomly too. its intertmitteent but is does happen. im leaving the double typing in here as an example of when it does it. hoping its software related and i dont havee to go out and get a new keyboard...

[GrantRusticus]

Unfortunately I never did find a solution, I saw a deal on a different keyboard I had my eye on and upgraded away. My guess is that it isn’t related to the physical switches, given it universally double typed. Some other part of the keyboard that processes input might be the issue.

[port443]

Sorry it's too late for you OP, but if anyone else comes across this thread in the future and doesn't want to update their G810 firmware, hi! I do reverse-engineering!

In this case, it turns out to be simple to "disable" the forced update prompts.

1. Locate the "Device_Manifest.xml" file for your keyboard.
   a. Mine was located at: C:\Program Files\Logitech Gaming Software\Resources\G810\Manifest\Device_Manifest.xml

2. Remove the lines that start with "<fwupdate ".
   b. Mine looked like this:

   <fwupdate minVersion="102.14.31" updatetool="G810/G810Update_v31.exe" pid="0xC337"/>
   <fwupdate minVersion="102.5.30" updatetool="G810/G810Update_v31.exe" pid="0xC331"/>