I happened to go on an extended trip and left my keyboard powered on throughout the week. When I return, I encountered a recurring keystroke issue that keeps typing 'q'. What I tried is to turn off and on the keyboard repeatedly that does not resolve it. Thinking this keyboard would need a hard reset, I tried to remove the rechargeable battery which just does not want to be removed - pincers, metal plates, flat screw drivers - the battery tray just doesn't give in and slide out! I gave up eventually.
So as a last resort, I gave Logitech a call to report the issue and asking if I could get an exchange since this is in warranty. The customer service representative provided me a wonderful solution that I could not find it anywhere, so here's the steps:
- Turn off the keyboard.
- While holding onto CAPS lock, keep pressing a few keys for the next 5 or more seconds.
- Turn on the keyboard.
Update: Finally, it's the battery!
The keyboard gave in again. It started with continuous 'q' and the above solution did not work. I took out the battery (finally and with a lot of struggle), place it back and gone, no longer works anymore. It does not pair but has a continuous blinking red :-(.
So I went ahead to purchase another of the same keyboard (K750r to be exact). Still unwilling to give in, I took out the battery of the new keyboard and plug it into the old one. That does it!
For those who are interested, the battery is a Maxell ML2032 Rechargable 3V.