Translation - Japanese: ホワイトリストにBLEデバイスアドレスを保持する - KBA222317 - Community Translated (JA)
How do you retain a BLE device address in the whitelist after the device is reset?
If devices are added only to the firmware whitelist, the device address will not be saved in Flash; it is lost when the device is reset. To retain the whitelisted devices, you should manually save the address to Flash. On device reset, these addresses should be reloaded to whitelist.