Hello guys
I have a brand new Uno Wifi Rev2 that will not connect via USB (Windows 10). In Device Manager, it shows under "Other devices" as "ATm32U4DFU". When i try to update drivers it says that the INF is invalid.
I installed the Atmel drivers via the Boards Manager in the IDE at the outset.
In addition, when it is plugged in, the power light is solid and nothing changes after reset button.
Grateful for any help.
Edit1: I forgot to mention that rev2 dont have ATm32U4DFU but ATMEGA4809.
ATm32U4DFU is the USB chip. something happen to the firmware in ATm32U4DFU
Is there a way to fix it ?
Abracadaniel:
Is there a way to fix it ?
complicated. I would return the board
https://forum.arduino.cc/index.php?topic=584239.0
Well thats a shame. Coz i won this board in Embedded world in Nurnberg. So i guess no returning. 
Abracadaniel:
Well thats a shame. Coz i won this board in Embedded world in Nurnberg. So i guess no returning.
then take the opportunity to experiment. I have no idea from the thread about the 32u4 how to flash it, but the schematics on the board is on the shop's site or you can ask in that thread about details