https://devzone.nordicsemi.com/f/nordic-q-a/41654/nrf52832-sdk13-0-s132-connect-bonding-failedhello! i have a problem ,when the Master send Slave SMP 37 Rcvd Pairing Request: Bonding, MITM, Initiator Key(s): LTK IRK CSRK , Responder Key(s): LTK IRK CSRK,but the slave didn&#39;t responds anything,why? i compared with normal(left) and abnormal(ritghten-USTelligent Community 13Mon, 17 Dec 2018 13:07:14 GMThttps://devzone.nordicsemi.com/thread/162084?ContentTypeID=1Mon, 17 Dec 2018 13:07:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c56ffff7-140a-409e-8f30-bf3c0ca04932Einar Thorsrud<p>Hi,</p> <p>It looks to me like you are comparing a empty FDS flash page on&nbsp;the left&nbsp;side, and a populated FDS page on the right side. Therefore it is tempting to believe that the error you are seeing is because you are trying to re-pair with a device (phone) that was already paired. That is not allowed by the peer manager by default. If that is the problem then you should either delete the bond on the nRF side as well before&nbsp;attempting&nbsp;to repair, or you should configure the Peer manager to allow repairing. The latter can be done by setting&nbsp;.allow_repairing = true in the handling of the&nbsp;PM_EVT_CONN_SEC_CONFIG_REQ event in your application.</p> <p>Br,</p> <p>Einar</p><div style="clear:both;"></div>