End effecter servo is off-center on firmware 4.2.0

uArm Serial No.: (the No. at the bottom of each uArm reading “UARM-XXXXXXXXXX”)

Firmware Version: 4.2.0

Operation System: Win 10

uArm Controlling Method: uArm Studio 1.1.17

I updated my uArm to firmware 4.2.0 which is supposed to make motion a lot smoother. Immediately after updating the firmware the end effecter/wrist servo is offset. In uArm Studio I have to set the angle to 107 for the servo to be centered again. This was not a problem in the previous firmware. I think there is a problem with the firmware and not the servo itself.


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Hi, thanks for the feedback, we believe this issue is caused by the error of the 4th servo motor instead of the firmware.

I did not see this issue with the current official firmware that comes installed by default. An error of 17 degrees seems really big no?