I need help...

[Just go Play]

I believe there is something that has to be done when using the spectrum radios. If I recall it has to do with the amount of time it takes for the RX to sync with the TX. My best guess would be to try connecting a RX pack to your receiver so that it will be powered up and ready when you connect the power to the MGM.

You can try searching the forums as I think this was a problem for some others also.

Insulate the bullet connectors befor going any farther. My best guess is that they touched and got some mosfets good 'n hot.

The paperwork covers programming through your transmitter. It works fine through my 3 series Spektrum.

To enter programming mode:
Turn transmitter on.
Set throttle & reverse (brake) throw to 100% if they aren't already. Brake % is switch E on your transmitter.
Connect car batteries.
Pull trigger full throttle forward and hold.
Switch MGM on.
Wait 10 seconds for 3 beeps.
Hold full reverse.
Wait for single beep.
Release throtthe.
Wait for two beeps.

You have calibrated your throttle throw and are now in programming mode.
If it were my choice I would switch the MGM off now to leave program mode and try again.

Program instructions are in your MGM paperwork but generally once in program mode:

Pull full throttle forward to bypass any parameter you do not wish to program.

Pull full reverse to progress through values within a parameter.
Full throttle then saves the selected value and moves to the next parameter.

Turn power switch off to exit program mode once your changes are saved.

As a bare minimum read the chart on page 6 of your MGM documentation.

[JERRY2KONE]

Back to thoses motor/controller bullet connections. With the bullet connectors hooked up do you still have bare metal exposed? If so you need to do something about that, or you are asking for another issue. If you had smoke comming out of the controller, then you need to stop, and get that controller checked out before going any further. You could cause even more problems with yoru motors and batteries. At least with the photos from what we can tell it is hooked up correctly, and the manufacturer should cover the problem and replace it. If you go any further you may end up losing out all together. Good luck with that.