Hi, I've been using this USB2SERIAL board for some time now to program my Arduino Pro Mini 5V/16Mhz and Arduino Pro Mini 3.3V/8Mhz both equipped with an atmega328. After I did some experimenting with DFUprogramming (changing firmware using Atmel's Flip software), I can't get it to work again with the upper mentioned boards. Has anyone found the original hex file flashed to this board or have any other solution.

Thank you in advance !


Arduino USB2SERIAL with an Atmega8U2. (see image)



I have already tried that. doesn't work. thanks for the help though !