● What should I do if uArm has a calibration problem/moves abnormally/skips steps?
（1）Please check the cable of the stepper and the motor, if it’s loose, replug it while the uArm is power off.
（2）Send the position below to uArm via Blockly, shoot a video while it’s moving and send to us via google driver or dropbox.
Move to Position X 180 Y180 Z30
Move to Position X 180 Y-180 Z30
Move to Position X 250 Y0 Z150
Move to Position X 150 Y0 Z30
（3）Re-calibrate manually （We don't recommend frequent calibrations）Guide for re-calibration