I lost almost all my range in my zz mt.All the wires are all soldered in and not loose,and it charges fine.It just lost almost all of its range after I put a tricell in it.Dont't know what happened.Can anyone help?
are the batts touching the pcb? tried a different controller (of the same frequency)? is the capacitor that goes across the motor terminals (in the chassis) still connected?
i also had this problem, i desoldered the entenna and soldered it in the opposite way, so it just faced up.. worked great! then i used a straw to hold it up right which gave it a lot of range and functioned as a wheelie bar lol!