Hi guys,I've finally got the MMM in my summit,It's great,except I can't get reverse

.I don't want to fart around reprogramming the esc trying to get reverse,if it means I mess with the setup I've already got.The brakes aren't too good,but other than the reverse and brakes its good.Ooh,I popped the top off the esc by crashing,that pulled the on/off wires from the circuit board

I thought as I'd payed so much,it'd handle a few crashes.Oh well ,what can ya do?