The Fly-F407ZG can be purchased here https://s.click.aliexpress.com/e/_DlS6n9R
This link is affiliated URL. If you purchase via link above it will give tiny cent of commission to the community organizers. (We are not Mellow employees, just 3D printer enthusiasts) This will not hurt your wallet and at the same time help us to maintain the GitHub better.
If you have any usage problems, please join https://discord.gg/hccjyvv Come to consult me
Reprapfirmware,Marlin2.0,Klipper
1.You can check the manual in this github, reprapfirmware folder
2.You can visithttps://github.com/gloomyandy/RepRapFirmware/wiki/Fly-407ZG-Wifi
1.modify platformio.ini file
default_envs = FLYF407ZG
2.modify Configuration.h file