I have 3 blue pills, all of them react the same way, the pullup resistor is ok (R10 = 152), connecting on DFU mode is OK after replacing the jumpers on 0, i remove the board from the programmer, connect the board on a known working micro usb cable, connect it on my main computer and the board is not recognized (VID_0000) i tried on another computer (a laptop) and on this one seems to be OK, even if i cant install Arduino_STM32 drivers on this laptop, the VID of the USB connected item is (sometimes) correct USB\VID_1EAF&PID_xxxx > Vendor ID, 1eaf. I have a problem with my blue pill, i uploaded the bootloader generic_boot20_pc13.bin to the board using a ST-Link V2 and the STM32 St-Link Utility, verify everything and this step seems to be OK.
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