Folks...I would greatly appreciate your help in trouble shooting this issue. I bought an Ancheer ebike last Summer, it's the foldable one with Magnesium alloy spokes. The bike barely lasted 40 miles(approximately two charges). After, I one long ride of 12 miles, the bike just quite working the next day, the motor wouldn't respond to either the throttle mode or the pedal assist. No indication from the motor that is was even trying to move. The Display comes ON...shows it is fully charged. I can switch btwn the different modes(throttle mode, and the different pedal assist levels) but none of the modes work. The fact that the display comes up, horn and lights work, indicates to me that the battery is good. I got in touch with Ancheer and after a lot of back and forth, and several follow ups they diagnosed the issue to be related to the motor based on the symptoms I listed. They sent me the motor which was a hell of a task replacing but I some what managed. However, that still didn't resolve the issue.Well...I thought the next possible thing would be the controller, they were quick this time to send the controller. This at least was an easy task replacing, but unfortunately it didn't resolve the issue. I next thought, is perhaps the throttle cable might be bad but then again why also is the pedal assist not working...I am thinking these are two different parts. I am very frustrated, because this is not suppose to be all that hard to trouble especially after replacing the motor and controller....what else can it be. Could the display not really be switching even though the display is indicating it is in those modes? I also noticed when the display is turned ON, there is this very low sounding but high pitch humming noise coming from somewhere....it this normal?