Good day to all.... I have 5 of the Homie 1000w bikes and have only used them once or twice each so far. Flat land in East Hampton, NY by elderly guests. So far, my immediate problem is that two of the five won’t turn on the CPU. One of the two “on/off” button simply seperated and we taped it back. It worked during that outing but now it won’t allow the screen to turn on. No welcome screen etc. battery’s are charged and buttons pressed and keys turned on. Any ideas would be appreciated and welcomed. Thanks to all who have contributed. They are truly nice bikes when working. PS I would have made the gearing a bit smaller to get more speed out of it as we are on relatively flat land here. Maybe another “option” when putting it together for a buyer? Kindly help on the screen issue. Thanks.