Hold all buttons WITHOUT batteries and plug into a USB port. Keep holding for ten seconds, throw batteries in while still connected, disonnect and reconnect to turn on. DO NOT TRY AND TURN ON NORMALLY. Use the cable.... This will work on any __-Priv series mod. Update (07/23/2018): EPriv and XPriv firmwares are available on 9/1/18 from what I hear. Mag and Gpriv just dropped.