connect issue between 51822 and my andriod phone

[mnxnm]

Hi, when I run the ble_app_proximity on my 51822 board, I can connect the 51822 board with NRF Master Control APP, after a little while , 51822 disconnect with app, and trace the 51822 status,printf the disconnect reason ,the value is 13

static void on_disconnect(ble_lls_t * p_lls, ble_evt_t * p_ble_evt)
{
    uint8_t reason = p_ble_evt->evt.gap_evt.params.disconnected.reason;
    app_trace_log("disconnect reason = %x\r\n",p_ble_evt->evt.gap_evt.params.disconnected.reason);
	  simple_uart_printHEX(p_ble_evt->evt.gap_evt.params.disconnected.reason);

#define BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION           0x13\

Can you give me some advice for this problem, Hardware problem or software bug?

[mnxnm]

Hi Bauck, follow your suggestion ,I get the app log ,

Log 2016-03-17 101242.txt

[Ole Bauck]

For readability of this thread: Could you edit your question and put this information there instead? Write "EDIT 'DATE'" just before the added stuff to make people see that it is edited.