I have problems with the start of my h7 STM32H743, I had been using it normally a few months ago but when I change computers and connect it as I did before I have a problem in startup.
When connecting, the green light turns on and then the blue LED flashes.
The messages that it indicates to me is that it is reprogramming FDU, when I click on cancel, I go to a dialog that tells me that the bootloader will be used and tells me to make a bridge in BOOT and RST.
When I follow the steps in that dialogue, I go to a window where it indicates a text with red letters that says:
0483: df11 cannot open DFU device.
What can I do since I cannot access my H7
Please your help.