LEDs and firmware updating

Hi all, got a new LC6000 which is now sitting proudly next to my prime 4. 2 questions. The LEDS on the sync and master buttons are indistinguishable either on or off. This has been mentioned many times in previous topics. Has Denon come up with a fix yet. Also, how do you update the LC6000 firmware? Can it be done by USB through the prime 4 or do I have to connect the LC6000 directly to my Mac? Thanks Craig