Getting an iOS central app to bond

RE: Getting an iOS central app to bond

gwayne — Thu, 06 Aug 2015 17:20:20 GMT

+1
I've been having the same problem with an iOS app I'm writing and this solved it. I didn't need to reboot however. After "forgetting" the previous connection turning bluetooth off, and then on again, in "settings->bluetooth" had the same effect. Thanks!

RE: Getting an iOS central app to bond

Eliot Stock — Tue, 04 Aug 2015 12:38:38 GMT

That was it - forgetting the device in the iOS Settings app and rebooting the phone did the trick. I now get the pairing prompt on the phone. Thanks very much. (I have converted your comment to an answer, btw.)

RE: Getting an iOS central app to bond

Bill Siever — Tue, 04 Aug 2015 12:16:37 GMT

iOS caches some details of device connections and saves bonding info. You might want to go to the iOS Setting->Bluetooth and "Forget" any of the known devices. (Sometimes with a dev board you'll bond with one test case and then reprogram the board. iOS may retain the bond from the previous test). You may want to reboot your iOS device too.

Also, what firmware are you using as a test case? Something like the Heart Rate Example that is known to work correctly? It's possible you've missed a setting or event that iOS requires. Be sure that you have code to do a sd_ble_gap_sec_params_reply() in response to a security parameters request. It might also be helpful to look at the sequence diagrams for bonding (like http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.s110.api.v8.0.0/group___b_l_e___g_a_p___p_e_r_i_p_h___b_o_n_d_i_n_g___j_w___m_s_c.html).

RE: Getting an iOS central app to bond

Eliot Stock — Tue, 04 Aug 2015 12:07:59 GMT

No. I'll add the security params I pass to the device manager on the Nordic side to the question.

RE: Getting an iOS central app to bond

Kamran — Tue, 04 Aug 2015 11:39:37 GMT

when you read secure characteristic, does it show bonding popup on screen?

RE: Getting an iOS central app to bond

Eliot Stock — Tue, 04 Aug 2015 09:22:04 GMT

Understood, but that is not the behaviour I'm seeing.

RE: Getting an iOS central app to bond

Kamran — Tue, 04 Aug 2015 09:13:29 GMT

In IOS, bonding is triggered when you read/write a secure characteristic. Ofcourse first you need to discover services and characteristics and then you do read/write. If a characteristic requires security then bonding is triggered automatically by IOS.