How to fix C19/C28 and Joint communication Error

  1. If your xArm Studio and firmware verison are earlier than 1.5.0, that may caused by the software issue. Update both the xArm Firmware and the xArm Studio to the latest version(≥1.6.1) will solve the problem.
    Here is the guidance to update the xArm Firmware and the xArm Studio:

  2. If the step 1 does not work, please refer to this article and contact

    What should I do if I have a problem with UFACTORY xArm? | UFACTORY Help Center