https://devzone.nordicsemi.com/f/nordic-q-a/9347/rebond-a-new-deviceSoftdevice Version： 8.0.0 SDK： 9.0.0 IC： NRF51822 Rev 3 service： NUS ANCS #define SEC_PARAM_BOND 1 /**&lt; Perform bonding. */ bool erase_bonds = false; After binding a cell phone; when you close the phone&#39;s Bluetooth, still can not connect toen-USTelligent Community 13Mon, 28 Sep 2015 09:27:45 GMThttps://devzone.nordicsemi.com/thread/34518?ContentTypeID=1Mon, 28 Sep 2015 09:27:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8908836a-25cf-4de4-a46f-7c919f419d38Stian R&#248;ed Hafskjold<p>Take a look at the message sequence diagrams here: <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s110.api.v8.0.0/group___b_l_e___g_a_p___m_s_c.html?cp=2_7_0_0_0_2_1_0">infocenter.nordicsemi.com/.../group___b_l_e___g_a_p___m_s_c.html</a></p> <p>They describe the interactions between central and peripheral when you try to pair/bond.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/34517?ContentTypeID=1Wed, 23 Sep 2015 10:01:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:09aaa4c6-6b3b-4961-a2f5-538955873d6dLong<p>How to realize when there is a new device to try to connect, BLE can automatically bond or ?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/34515?ContentTypeID=1Tue, 22 Sep 2015 08:15:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ead9e4e2-c2ad-40d2-b537-3033dfa7ce42Stian R&#248;ed Hafskjold<p>Yes you can do that. Just start advertising without whitelisting again, and add it to the whitelist when you bond. Or you can add the bluetooth addresses manually in the code for all the devices you want to whitelist.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/34516?ContentTypeID=1Tue, 22 Sep 2015 08:12:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8d528b54-32b1-4139-8e80-a7f4f77ad07eLong<p>Hi stian, Thanks for your answer! Normally ，can we save two cell phones to the white list ?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/34514?ContentTypeID=1Tue, 22 Sep 2015 07:00:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:846d3396-8b98-463f-b794-97d10c26bb84Stian R&#248;ed Hafskjold<p>Well, there you have the answer. It will only connect to the whitelisted phones.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/34513?ContentTypeID=1Tue, 22 Sep 2015 01:48:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f321176f-22de-49eb-8e16-e5274d45e38aLong<p>Hi Stian Yes, we had whitelisting on. The SDK is nRF51_SDK_9.0.0_2e23562.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/34512?ContentTypeID=1Mon, 21 Sep 2015 14:17:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a6adef4c-fe16-4991-851b-2b4c708cfb73Stian R&#248;ed Hafskjold<p>Sounds like you have whitelisting on. Which SDK example do you use?</p><div style="clear:both;"></div>