Hello! I am building a robot arm with five MX-28 servos (firmware versions 39 to 41) and two AX-12 servos. I was prepping them to run controlled by an arduino, which requires setting the baudrate from 1Mb/s to 57.6kb/s. I had previously tested and confirmed each servo working using Dynamixel Wizard 2.0 and a USB2AX dongle, both individually and chained in series. I used the wizard to change the bauds of each of the 7 servos. All but one of the servos took well to the baudrate change.
An MX-28 servo with firmware v39, ID=1, and response delay set to 500us now fails to respond. When I hit “Save”, the servo disconnected and failed to reconnect. The baud was initially set to 1Mb/s, and I tried to change it to 57.6kb/s. I’ve scanned all possible protocols, all possible bauds, and all possible id’s, and the servo fails to connect. When I plug in power, the red light flashes once as expected. I’m assuming that the baudrate was set to some illegal value, but I don’t know if there is any way to recover. I tried the recovery wizard in the Dynamixel Wizard 2.0, but when I unplug and replug the power lead (as directed), nothing happens. Not sure how to proceed, please help!