Start by doing a factory reset on your radio. It’s under the system options.
Then you need power to your receiver. You need to run a negative wire (black) to the - pin and a positive wire to the + pin. The positive pin is the middle one, the negative is the bottom one. Use any of the ports on the receiver, the positive and negative pins are all connected together. The voltage range for the receiver is printed right on it, so one cell, two cells, or your 5v thing are all fine, as long as you can connect the power to the receiver.
Now bind. Put the bind plug on the receiver and plug in the power. The hold down the bind button on the transmitter and turn it on. It should say bind successful.
Lastly, plug your servo into port 1 and wiggle your right stick left and right. Verify the servo moved. Then port 2, and move the right stick up and down. Port 3 is the left stick up and down. Port 4 is left stick left and right.
You still haven’t tested ports 5 or 6, but if the others all work, those probably do too.