With dealer involved service they always flash computer. It is inconvenient to connect reconnect devices, IE, hypertech, P.C. when technology is available o Bluetooth connection. I'm willing to wager these Co,s will provide the wireless connection. I'm going wait. The connection terminals are not designed for repeated connection, re-connection. The firewall this device disables is to provide a change in Truck settings. The Security module it is pretty much an on off switch. Off allowing programming/On prevent hacking (why the Security module system was developed). This post is not to get readers excited like previous responses. My opinion/observations.