hello guys, i have the following problem: i have some uno r3 cards and i found that some of them do not have dfu mode in their firmware, because i can't get into the mode on some of the cards.
I know they are functional, as they write code without any error.
I found a material on the internet teaching how to solve this, but now I get this error message
Arduino: 1.8.13 (Windows 10), Board: "UNO 16U2 Restore Firmware"
Could not find tool avrdude from package arduino
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
I am told if I did not format the error message correctly, but I understood that it was to be put like this.
but back to the problem: the documentation said to make some modifications to boards.txt, place some point files in specific locations and prepare the ArduinoISP recording before connecting the second arduino for the firmware recording.
the material in question is contained on the following page:
Forum Arduino
I also left my question there, but I don't know if anyone will answer me, since the material is not current.
I would like to apologize for creating the topic, but I didn't find anything like my problem.
neither here, nor by google itself.
I checked youtube and unsuccessfully too.
have a nice day 