Users experiencing connection issues with the NUCLEO-WB05KZ, NUCLEO-WB07CC, and NUCLEO-WB09KE boards should check if the problem is due to the low-power mode. The low-power mode is activated by the BLE_p2pserver demo, which is pre-programmed on the boards out of the box.
The low-power mode enhances low-power performance but also turns off the SWD lines, making it impossible for tools to connect to the device. To resolve this, users need to enter bootloader mode.
For the NUCLEO-WB07CC and NUCLEO-WB09KE, this requires connecting pins 2 and 1 on the JP1 jumper of the MB2119-WB07-A02 or MB2032-WB09-B02 MCU RF board.
For the NUCLEO-WB05KZ, users should connect pin 5 and pin 7 on the JP3 jumper found on CN3 of the MB1801 mezzanine board. The JP1 is not fitted on the MB2032-WB05-B03.
By following these instructions, users can restore connectivity and reprogram their Nucleo boards effectively.
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