Wrist servo not working

[goto80]

uArm Serial No.: UARM-D43639D85C8C
Firmware Version: 4.4.0 & 3.2.0
Operation System: Win10
uArm Controlling Method: uArm Studio 1.1.22

I’ve tried the servo on the old and the new firmware, and I can’t get it to work at all, with either of them.
Here is a quick video to explain: https://www.dropbox.com/s/iudguc0hbbfiwms/VID_20191126_163150.mp4?dl=0

I can’t really see that I’m doing anything wrong. Could there be something wrong with this uArm-batch?

Thanks so much for your help

[jane]

Hi，
Can you contact me by email， because you need to provide some personal information.

support@ufactory.cc