https://devzone.nordicsemi.com/f/nordic-q-a/12143/no-invitation-to-enter-passkey-on-asus-tabletI have ASUS ZenPad 10 with Android 5.0.2, BLE device on nRF51, S110 SDK9 with fixed passkey and encrypted characteristics with following settings #define SEC_PARAM_BOND 1 /**< Perform bonding. */ #define SEC_PARAM_MITM 1 /**< Man In The Middle protectionen-USTelligent Community 13Tue, 14 Nov 2017 10:43:53 GMT