Thanks for posting this recap and providing useful information about your problem resolution.
To follow up on that, here are a few new tutorials that can help Niryo users who have some calibration issues.
Mostly a calibration problem is due to (and you should check that in the order, following the tutorials with the link above):
– A belt not tensed enough
– A timing pulley not correctly fixed
– A magnet not correctly fixed on a NiryoStepper motor
– A broken wire