How to stop a service then start another service?

Question

Hi all,
I want accive this situation. My peripheral connecting a central with a service for example hrs, then i stop the conect with the function sd_ble_gap_disconnect(m_conn_handle_peripheral, BLE_HCI_STATUS_CODE_SUCCESS).
Then i want to stop the service and start a new service(bas for example), then i restart the new adveristing?
How to remove a service then disconnect to a central then restart the new adv with a new service?
Thanks~

shibshab · Accepted Answer

This can be achieved by restarting the softdevice. 
 When sd_softdevice_disable is called, all memory used by the softdevice is freed. This includes the GATT database. 
 After re-starting the softdevice, you can re-populate the GATT database with the new service. (Note that you also need to call sd_ble_enable to re-enable the BLE extension of the softdevice). 
 To update the advertisement data, simply call sd_ble_gap_adv_data_set.