When I connect the power the arm emits a “drop” and I connect to the computer with a usb. The arm moves normally but the wrist still does not rotate at any position for the arm. This a brand new arm that has ~5min run time on the arm. I was not sent the power supply in the original purchase (I have not been able to run the arm for months until the power supply was recently sent). Is the an issue with this batch of uArms?
Can you send a photo of where 18pin wire damage will be (again this arm has only ran 5 minutes max)?
Any other ideas of what might be causing the wrist to not move?