Using the Happymodel ELRS EPW6 2.4GHz 6CH PWM RC receiver is easy. First, connect the antennas to the IPEX MHF 1/U.FL antenna connector. Then, make sure to connect the receiver to a power source with a voltage between +5v and 8.4v. You can choose the firmware that suits your needs, either the PWM or CRSF option. When it comes to updating the firmware, just use the WIFI feature. As for maintenance, keep the receiver clean and dry. Avoid exposing it to extreme temperatures or humidity. If you have any issues with the receiver, check the connections first. And always store it in a safe place when not in use.