No DFU Mode

[ChrisLaser]

Hey there,
the blue LED from the U2C V2.1 is always on, but the board is never in DFU mode. Tested with RPI and Windwos with "STM Cube Programmer".
Any ideas?

[stumpk]

Same here. The lights light up but device is never seen in the list of USB devices. Have tried several USB cables known to work, have tried on RPI, Windows, Ubuntu. appears to not be communicating at all

[billru05]

are you plugging the usb "C" cable into the Pi or computer

[willian-virgilio]

The same happen tô me... but im using 1.0v manta 8p board with cw1 raspberry... só on tais board im algo have tô abilitate the dfu Mode too

[STM3D]

Its like mine to, please need help

[Dreamdancer100]

I've the same Issue I've the u2c V2.1 from Bigtreetech and I can't get the Device into DFU Mode.
I press and hold the boot button an then connect the USB Cable but nothing happen.
I use many different USB Cable. in Versin 2 and 3.
I tested with stm32cube programmer in USB Mode and directly with my Pi on ssh but on lsusb nothing showen as new canbus device I've the same problem on EBB36 V1.2 I connect the USB cable I hold the Boot Button and press the Reset Button then release the buttons. Same on the u2c Board. What can I do to solve the Problem

[aee74]

I've the same Issue. The u2c V2.1 can't get into DFU Mode. Tried a few different cables to the pi but I never get the blue light. The only light is the power next to the big green connector.

[cthinnes]

If you have a keyboard plugged into the BTT pi, the U2C will not enter dfu mode. I unplugged my keyboard and the U2C went into dfu mode. I had to try another usb to c cable as well.