You must have accidentally bridged a solder pad or two - easy to do when they are so small. Do you know what blew?
I don't know the part name but here's a pic. Both are circled in red.
Castle Neu 1520 on 6S LiPo Powered Gmaxx (Nitro Killer)
Predator with OS .21TM
Supermaxx with Mach .26
Revo with OS .18TZ
Kyosho ST-RR Conversion
Ofna CR with Tekin ESC/Motor (2)