Hi J,
U3.4 that comes up when powering up the display is not an error code. It is the current software version that the display is loaded with.
If you get power from the throttle and not from the pedal assist I would recommend removing the torque sensor, inspecting it and cleaning it. I had one...
Hi, this is Mike L from Tillsonburg Ontario.
My wife has an Emmo folding ebike that she uses mostly while camping and occasionally around home. I recently purchased a fixer upper BH Easy Motion Neo Volt. It needs a few parts and the battery is dead. I rebuilt my wife’s battery along with a...