Mamba XL2 Beeping

[4wheels]

I just got all my parts for my build but now im running into my first issues.
My soldering job consisted of taking 8guage wire,trimming it to fit into 4mm connectors.

Im using a mamba xl2, i can not get the field link to connect to the esc either.
My receiver is either faulty or not getting power, as i cant bind it with transmitter..

could my bad soldering job be the problem, or is it a faulty receiver (Quanum 2.4Ghz 3ch Pistol Grip Tx & Rx System), and its beeping because i cant arm the esc?

 

[4wheels]

After rechecking the solder connection, i found one bad one. This was the cause of my problems.

but now i think i have the Rx and Tx bound, but no motor response when giving gas.

 

[4wheels]

Need to calibrate throttle setting.. now everything works as it should!