I tried updating my flsun delta mini with new firmware using the only guide I could fine (https://github.com/FLSun3dp/FLSun-Kossel-Mini/wiki/01.-Software-and-Firmware). i used the example configuration.h files for the flsun delta mini, but marlin says that they are too old and to update them before building marlin when I try to upload through the arduino aplication. can someone help me upload new firmware?
