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HI @Imen DAHMENI haven't solved the problem yetI'm developing an application which uses both USB CDC and BLE, using an stm32wb55cg USB_Dongle as my current target board. I've started by building two separate applications using STM32CubeMX(STM32Cube_F...

HI @Imen DAHMENI haven't solved the problem yet !!!! Help me !!

Hi! I also met the same problem. Have you solved this problem now?

YES!the STM32WB55 has embedded pull-up resistor on USB_DP.