Broken USB Port FTDI Adapter Betaflight 3.1 Won't Connect Workaround
Added 2017-03-06 18:27:49 +0000 UTCIf you have a broken USB port and have been using an FTDI adapter to connect to your flight controller, Betaflight 3.1 won't work, because they disabled MSP on UART1 by default. Here is a directory of custom builds of 3.1.6, with MSP enabled on UART1.
https://drive.google.com/drive/folders/0ByGP1-R-32UgUDZhSDJkVWZJdk0?usp=sharing