After one of the LEDs failed, I took the keyboard apart (not great a experience btw) and the led is pretty much impossible to replace. Poor little G910 :( : r/LogitechG
Logitech G910 Software, Updates for Mechanical Keyboard -
Compatible with Logitech G910 keycaps Full set of 113 keys Mechanical keyboard for gaming.: Amazon.de: Computer & Accessories
Angry Miao Releases CYBERBOARD, First Mechanical Keyboard with Custom LED Panel on Indiegogo | TechPowerUp