You need to use the USB-TTL cable from the package to upgrade the firmware.
1. You need windows 7 or higher with Microsoft .Net 4.0 to run the upgrade.
Plug USB-TTL cable to your computer. Go to control panel->Device Manager to see the
COM port number that assigned by the system. For example it is COM4 as shown in the
picture below.
1.
Plug the USB-TTL blue connector in the GPS port of AP (Also blue)
3. Download the update program:
http://www.myflydream.com/inc/lib/download/download.php?DId=43
Run the MFD_Update.exe program. Select corresponding COM port.
4. Download the most update firmware: