Thanks for the reply. I have done all that unfortunately. This problem started when assembling bike. Could not get to turn to open battery compartment. Finally broke free and turned. Took out battery and that pin/spring assembly on lock mechanism was rolling around in bottom of compartment. Received new lock mechanism with pin/spring assy intact. Now battery won't push down enough to lock. Per instructions shaved down the rubber battery bumper in compartment to point of destroying. Received new battery bumper which was preshaved to what was expected to work. Installed. Still cannot get battery to lock in place. Have pushed, pulled, one hand, two hands, wiggled back and forth, practically walked on and lock will not engage. So like you, have a $5000.00 bike sitting in my basement unusable. serial1 support has not been very supportive on this issue considering that I am doing all their legwork. Have sent them pictures, videos, replaced parts to no avail. I don't have a dealership close that carries the bikes. The closest one tells me they will not look at because it is an out of box problem and has to be resolved first. Very frustrated and disappointed that I made this purchase. Hope others have had better luck than me.