What hardware version do I have?

If you have version 2 you may download the firmware revision. If you have version 1 please contact Sentera Controls via info@sentera-controls.com and ask for the latest firmware for this revision. Please also check our online tutorial about how to update or change the firmware on your SE-S electronic speed controller.

Open the controller and look at the inside of the front. If the black connector is on the right, you have version 2.