Mamba Max red lights flashing only...

[jnev]

The thing is that when I try to bind the receiver and transmitter, the green light never ends up flashing on the receiver. The instructions say to hold down the bind button while turning on receiver (I use switch on MM btw) and wait for green light to flash on receiver. Then hold down bind button on transmitter and wait for the green light to flash on the transmitter. Then lights on both should be solid... but I can't even get past step one of having lights go on on the receiver...

Should I plug in the rx pack into the bat port on the receiver? How do I turn the receiver on if the ESC is not plugged in...?