Bluetooth not connecting after inclusion of UART module in HID example. Its urgent.

I'm trying to combine hid keyboard with .../peripheral/uart example. 

Only after the bluetooth connection is established between host (PC) & nrf DK, I want to continuously send data received from uart (connected to microcontroller) to host machine. This data needs to be sent in input report. 

But if I merge the uart peripheral with hid keyboard, the bluetooth does not connect at all.

I have pasted the changes I have made to specific functions/ files. Can you check at your end?

void uart_error_handle(app_uart_evt_t * p_event)
{
	if (p_event->evt_type == APP_UART_DATA_READY)
    {
		if(flag == 1)
		{
			while (app_uart_get(&cr) != NRF_SUCCESS){};
			if (cr == '9')
			{
				bsp_board_led_invert(1);
				nrf_delay_ms(500);
			}
		}
		//while (app_uart_put('?') != NRF_SUCCESS);
	}
/*	else if (p_event->evt_type == APP_UART_TX_EMPTY)
    {
        while (app_uart_put('?') != NRF_SUCCESS);
    }*/
    else if (p_event->evt_type == APP_UART_COMMUNICATION_ERROR)
    {
        APP_ERROR_HANDLER(p_event->data.error_communication);
    }
    else if (p_event->evt_type == APP_UART_FIFO_ERROR)
    {
        APP_ERROR_HANDLER(p_event->data.error_code);
    }	
}

static void uart_init(void)
{
	uint32_t err_code;
	const app_uart_comm_params_t comm_params = 
	{
          RX_PIN_NUMBER,
          TX_PIN_NUMBER,
          0,/*RTS_PIN_NUMBER,*/
          0,/*CTS_PIN_NUMBER,*/
          UART_HWFC,
          false,
          NRF_UART_BAUDRATE_460800
      };
    APP_UART_FIFO_INIT(&comm_params, UART_RX_BUF_SIZE, UART_TX_BUF_SIZE, uart_error_handle, APP_IRQ_PRIORITY_LOWEST, err_code);
	APP_ERROR_CHECK(err_code);
}

static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)
{
    ret_code_t err_code;
    switch (p_ble_evt->header.evt_id)
    {
        case BLE_GAP_EVT_CONNECTED:
            NRF_LOG_INFO("Connected");
            err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
            APP_ERROR_CHECK(err_code);
            m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
            err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle);
            APP_ERROR_CHECK(err_code);
			flag = 1;
            break;
        case BLE_GAP_EVT_DISCONNECTED:
            NRF_LOG_INFO("Disconnected");
            // Dequeue all keys without transmission.
            (void) buffer_dequeue(false);
            m_conn_handle = BLE_CONN_HANDLE_INVALID;
            // Reset m_caps_on variable. Upon reconnect, the HID host will re-send the Output report containing the Caps lock state.
//            m_caps_on = false;
            // disabling alert 3. signal - used for capslock ON
            err_code = bsp_indication_set(BSP_INDICATE_ALERT_OFF);
            APP_ERROR_CHECK(err_code);
			flag = 0;
            break; // BLE_GAP_EVT_DISCONNECTED

int main(void)
{
    bool erase_bonds;
    log_init();
//	Data_Init();
    timers_init();
    buttons_leds_init(&erase_bonds);
    power_management_init();
    ble_stack_init();
    scheduler_init();
    gap_params_init();
    gatt_init();
    advertising_init();
    services_init();
    sensor_simulator_init();
    conn_params_init();
    buffer_init();
    peer_manager_init();
    NRF_LOG_INFO("HID Keyboard example started.");
    timers_start();
    advertising_start(erase_bonds);
	uart_init();
    for (;;)
    {
        idle_state_handle();
    }
}

Rest things are just as is from ../peripheral/uart code.

I also made changes to sdkconfig.h

5355.sdk_config.h