Hello hello
to all Pros

Newbie here on RC drift
Pls advise me on the my problem

Got The 1/10 EP Fazer Kyosho EP FAZER r/s Aston Martin
with
G27 Motor
Perfex KT6 Transmitter
RC System KA-16 ESC

Yesterday I mod the Body shell with TAMIYA LED SYSTEM FOR RC CARS

For the first 10-15min of drifting it was good
then the problem come when the RC Car can only go forward , Brake but could not go backward
pls advise
how can i reset the RC System KA-16 ESC

thanks