the green, yellow and red all blink togather about 5 times a second which is pretty fast, but idk how the LVC could be kicking in when im using a fully charged pack, i even checked the voltage with a little individual cell voltmeter that plugs into the balance port and it said 16.80V. Unfortunatley i can't find my castle link CD, it was installed on my old computer but it crashed, but i remember setting the ESC for 4s LVC when it was being used. i hooked it up to a reciever but not to a motor and the LED's didn't respond to throttle or brake inputs.