Hi, I was doing the usb keyboard project with the Uno, changed the firmware in the Serial-usb chip using the DFU mode with Flip. Now, I want to do another project, but I cant remember the correct files that I have to upload. Can someone help me to get the Uno to its original configuration? Thank…

Original firmware in Arduino Uno R3

system November 15, 2012, 5:44pm 7

I tried the step you told above but I still can't turn r3 to dfu mode. =(

Topic		Replies	Views
Can't put Uno R3 into DFU mode [SOLVED] IDE 1.x	9	7215	May 5, 2021
can uno r3 be put into dfu mode with connections to the pins on the board? IDE 1.x	5	1118	May 5, 2021
How to get into DFU mode? IDE 1.x	9	3151	May 5, 2021
arduino uno r3 dfu issue (unojoy) IDE 1.x	6	2353	May 5, 2021
Can not put Arduino UNO R2's atmega 16U2 into DFU mode IDE 1.x	19	13849	May 5, 2021