I installed the app using the QR code. I connected the battery to the iMortor, pressed the On switch on the thumb-activated controller, and the lights came on. I started the app. It connected to my iPhone Bluetooth. It prompted me for a password. I entered 0000 as per the instruction book. However, it rejected this password, asking for the password again. I tried many obvious possible passwords, including entering no password. Nothing worked.
Maybe there was already a password entered on the device. If so, how do I reset the password.
Will change my 1 star rating if problem is resolved.