It is almost never necessary to reset the unit.If the unit’s LEDs do not light, there are three possible causes:The ESC (which normally powers the unit) is either not powered or is an ESC without BEC or the throttle connector is not properly connected to the unit.The iKON2 (not the old iKON units) can also be powered by the USB cable without the risk of the motor starting.NOTE: Many USB phone charging cables do not have internal connections for data transmission and reception but only power cables. With these types of cables, the iKON2s are powered and the LEDs light up, but it is not possible to connect with the configuration software.There is a short circuit in one of the servos, or in the receiver, or one of the cables has shorted with a carbon frame edge (carbon is conductive!).We suggest that you disconnect all the devices from the iKON2 control unit and to power it only from USB to check if the LEDs light up.Check that the ESC is equipped with an internal BEC, otherwise, in addition to the ESC, a BEC powered by the same battery pack used by the ESC must also be mounted on the model.Disconnect the USB cable and try to power the unit by the ESC (or by the separate BEC) to see if the LED’s light up. Then reconnect one device at a time to understand if and which one is short-circuited.If all else fails and you need to reset the unit, a reset procedure is available here.