nRF52 sometimes stay "connected" even though we close the iOS app and turn off bluetooth

[Alex]

Hello,

First of, I'm developing with eclipse an application based on the freertos example of the SDK 15.0 with softdevice S132 v6.0.0.

My problem is that the nRF52 sometimes stay "connected" after our iOS app has disconnected.
We even turned off the bluetooth and no disconnect event are trigger on the nRF52.

Also, the m_conn_handle doesn't change after the iOS application disconnect.

Any idea of what could cause this behavior?

Looking forward to your reply.

Alex

[Joakim Jakobsen]

Hi Alex.

My problem is that the nRF52 sometimes stay "connected" after our iOS app has disconnected.

 Which app is this? Are you using nRF Connect or one of the other Nordic apps?

You can take a look at this thread:
https://devzone.nordicsemi.com/f/nordic-q-a/24095/ble-disconnect-detect

Best regards.