iOS and pairing/bonding issue

[AntonHellbe]

Hi all,

I'm developing an application for the nRF52832 that pairs and bonds with an app that my colleague are developing for iOS. However we are facing an issue with pairing and bonding that appears occasionally in the app. When my colleague reads the characteristics which are protected (requires bond) normally we get the "DEVICE_XX would like to pair YES/NO" dialogue on the iPhone. But occasionally we get an error message instead:

"Error Domain=CBErrorDomain Code=8 "The specified UUID is not allowed for this operation." UserInfo={NSLocalizedDescription=The specified UUID is not allowed for this operation.}"

Have anyone seen this issue before?

HW:nRF52832

SDK: V15.0

SD: V6.0 (s132)

[Mttrinh]

Hi,

We haven't seen this issue before. Could you try turning the bluetooth on your phone off/on? To see if it might be an chaching issue. 

Have you tried testing with other firmwares on the same DK? Does it happen on the latest stable release iOS12.4? 

Could also try it with nRF Connect and other iPhones as well?

[AntonHellbe]

Hi,

I suspect that it might have something to do with caching as we are sometimes changing the GATT attribute table. I have enabled Service Changed Characteristic and now I notify each time a bonded device connects that the attribute table has changed.

I have sent it to my colleague who will test it out. Hopefully it will help :).

Br,
Anton