RC Tank Warfare community hobby forum

Hello to everyone I wonder if somebody could help me with my problem I got a heng long KingTiger 7.0
Metal tracks and metal wheel recoiling gun anyway when I added the recoiling gun it didn’t elevate I fix that problem and now the tank won’t start or the lights go on batteries a charge. It was working right before now. It’s just stopped ?

Hobby news was not an appropriate section to post this, especially on in a subject about a calendar.
Now in an appropriate place.
It may benefit you to post an introduction as per the request within the welcome email/message.

The TK 7.0 main board does not have servo recoil or elevation..the evevation is a motor and gearbox.
Where have you plugged in the recoil etc and have you caused a short circuit ..w