User Manual

1. To perform a hard bootloader reset, first make sure the Maestro is powered off. It is best if
you can just disconnect everything from it.
2. Using a screwdriver, a small piece of wire, or some other conductive tool, short the two
exposed bootloader pads together. The pads are shown in the pictures below:
Bootloader pads for the Micro Maestro
6-Channel USB Servo Controller.
Bootloader pads for the Mini
Maestro 12-, 18-, or 24-Channel
USB Servo Controller.
3. While the pads are shorted together, connect the Maestro to USB. Usually the easiest way to
do this is to have one end of the USB cable already plugged into the Maestro, and connect
the other end to the computer after you have shorted the pads.
This might require a few tries. Once it works, you should see the green LED double-blinking, and the
Maestro’s bootloader should be visible in your Device Manager (if you are using Windows). Then you
Pololu Maestro Servo Controller User’s Guide © 2001–2017 Pololu Corporation
4. Using the Maestro Control Center Page 43 of 99