https://devzone.nordicsemi.com/f/nordic-q-a/47142/proof-of-concept-with-pre-bonded-ltk-2I learned from the following support ticket link that for adding a pre-bonded LTK to the nRF52 bonding store, I can call pm_peer_new(). https://devzone.nordicsemi.com/f/nordic-q-a/47110/proof-of-concept-with-pre-bonded-ltk I tried to do this at theen-USTelligent Community 13Fri, 10 May 2019 13:12:32 GMThttps://devzone.nordicsemi.com/thread/186440?ContentTypeID=1Fri, 10 May 2019 13:12:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2c3e2c1f-7f93-44bd-8305-2dd23533fedaStefan Wyss<p>Ok, my problem is gone (But I don&#39;t know why...?). <br /><br />When I insert a <em>nrf_delay_us(100000)</em> right after <em>pm_peer_data_bonding_store()</em>, then the static peer bonding data is successfully written into flash. </p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/186291?ContentTypeID=1Fri, 10 May 2019 07:29:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f79a62ad-2516-4d31-997c-d3ff50c02ea5Stefan Wyss<p>It seems that the system reset is only happening when I single step debug my code, because otherwise it smoothly runs through, but still does not store the bonding information in flash. Isn&#39;t it possible to write to flash in debugging mode?&nbsp;</p><div style="clear:both;"></div>