Delete one side bond info,Cannot pair again

[Martin Evans]

Dear Nordic Team,

I am programming with ncs V2.9.0 and nrf52833.

There is a trouble happend when one side delete the pairing info,but the other not.

Peripheral has already forgot the info,But central still maintain it.And then central side will report this LOG.

I want to pair with it again WHENEVER WHATEVER happened.HOW I can do to avoid it?

Best regard.

Martin

[Simonr]

Hi Martin

This is the expected behavior when doing bonding with BLE. If one device still remembers the bonding it won't be able to bond with the device that has deleted the bonding information again as it still thinks it is bonded. This is part of the Bluetooth LE specification.

If you add a way to erase the bonds on the other side either upon a disconnect or upon a failed connection/bonding attempt. Alternatively, don't erase the bonding info from one side in the first place.

Best regards,

Simon

[Martin Evans]

Hi Simonr,

I have never delete bonded info at any side,but our product happend.

So I have to find out one way to solve or aviod this phenomenon.Do there any suggestions?

Thanks

Best regard

Martin