[BLE] Can't re-pair and re-bond a previously bonded device when bonding information is lost on the smartphone

[BKaiwalya]

Hi,

 

I am building a BLE application using Zephyr v3.7.0 and nucleo_wba55cg evaluation board. I have currently implemented the accept list functionality where only paired and bonded devices can connect in accept list adv mode.

 

However, I struggle with the bond deletion scenarios; below you can find the test steps to reciprocate the scenario:

1. Enable pairable adv mode on the peripheral side, and then connect, pair and bond a smartphone
2. Delete the stored bond on the smartphone side
3. Enable again pairable mode on the peripheral with an intention to re-bond the smartphone that has been bonded in step 1

In step 3, I am not able to re-pair and re-bond the same smartphone that has been bonded once before (essentially, the peripheral device retains the bond but still bonding is not possible)

Note:

• In my project, I also delete the bond information on the peripheral side in the security callback in case the encryption of the connection is insufficient

 

@Lubos KOUDELKA  @Sebastien DENOUAL  @Dominique FOLLEZOUR 

 

 

 

 

[Roger SHIVELY]

Hello @BKaiwalya 

This post has been escalated to the ST Online Support Team for additional assistance.  We'll contact you directly.

Regards,

Roger