Guys, I'm trying to see if we can start a log of product serial numbers to pin-point and quantify when the 2.1 ESC first started being installed in the DJI assembly-line. Looking at the underbelly of My Phantom 2 Vision+ v3, the serial number, with last 3 digits obscured, is PH45468???, bought mid-December. My ESC version is unknown as I haven't opened her up yet. For those that have opened up their phantoms, what are your serial numbers (obscure the last three digits) and ESC versions? I believe the serial numbers are sequential, so we should be able to create a numeric range for the Blank ESC, the 2.0 ESC, and the 2.1 ESC. If we can then combine that with purchase data, we can figure out when our phantoms were minted, and perhaps also be able to determine our ESC number without opening our phantoms up. I just don't want to mess with the stickers on the shell, lol.