I have went through the forums and found no real answers so i am bringing up old stuff, Uno R4 minima, basic example code
,< errSketch uses 54348 bytes (20%) of program storage space. Maximum is 262144 bytes.
Global variables use 4564 bytes (13%) of dynamic memory, leaving 28204 bytes for local variables. Maximum is 32768 bytes.
dfu-util 0.11-arduino4
Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2021 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/
Opening DFU capable USB device...
Device ID 2341:0069
Run-Time device DFU version 0101
Claiming USB DFU (Run-Time) Interface...
Setting Alternate Interface zero...
Determining device status...
DFU state(0) = appIDLE, status(0) = No error condition is present
Device really in Run-Time Mode, send DFU detach request...
Device will detach and reattach...
Lost device after RESET?
Failed uploading: uploading error: exit status 74or 74. >