Unable to connect via Bluetooth or wired connection

I connected everything and configured it, saving the firmware. After checking everything, I turned off the PC and went to bed. In the morning, I wanted to finish the firmware, but it simply doesn't detect the controller via the wire. When I try to connect via Bluetooth, I get the error "Could not read firmware version. Make sure that the selected port actually belongs to the VESC. If you are using UART, make sure the port is enabled, connected correctly (rx to tx and tx to rx), and uses the correct baudrate." What should I do? Vesc Flipsky 75100 Pro V2