Huangshan BLE “cannot be opened” (neither discoverable nor able to discover), unable to scan ESP32C6 (modules with both BLE and BT), and phones also cannot detect Huangshan’s BLE (phones can scan and connect to ESP32C6’s BLE or BT).
The official statement says phones generally cannot detect BLE (unless using system Bluetooth settings or dedicated Bluetooth apps), but ESP32C6 should easily detect it regardless.
BLE has already been configured via menuconfig. Referenced the example example\ble\central_and_peripheral.