If delete a bond due to no enough flash memory, the whether should I remove the bond on smart phone side

[Bing]

Hi,

I am using SDK15.2/3, I know the SDK peer manager has a feature to delete the oldest bonds if the flash memory is not enough to store a new bond. In this case, whether should I remove the the nRF device in corresponding smart phone's system bluetooth setting?

For example, I need ANCS function when connected with iOS device. And the example using is examples\ble_peripheral\ble_app_ancs_c. If I want to enable multiple phones to create their bonds with the same nRF device. And I know the peer_manager will automatically recycle the space based on deleting the odlest peer device when the peers arrive the top number. In this case, whether should I suggest te phone's user to remove the corresponding nRF device in its phone's settings if the phone's bonding information is removed on nRF side. 

Thanks. 

[Marjeris Romero]

Hi,

If you delete a bond on the nRF chip side you should also delete the bond on the phone side.

Best Regards,

Marjeris

[Bing]

Because the bond removed on nRF chip side due to flash memory not enough,  and the space is automatically recycle by the peer manager module. I don't which device will be removed. So in this case, if the phone keep the bonds not removed and reconect the nRF again. What will happen?

[Sigurd]

Bing said:

What will happen?

 If that happens, you will get the error PM_CONN_SEC_ERROR_PIN_OR_KEY_MISSING. See this link.
As indicated in this post, this issue should be fixed by simply removing the bond on the phone as well.