BLE_NUS compatibility

[cedric]

Hello, I use BLE NUS since one year to service a device. I recently got to SDK13, using SD132. When I use iOS9 everything is ok. But when I use iOS10, the tx characteristic is not recognized by the system. The list the compatibility, SDK13 and iOS9 work, SDK09 and iOS9 work, SDK09 and iOS10 work, SDK13 and iOS10 doens't. Are there some parameters to add? I'read that BLE_GATTS_EVT_SYS_ATTR_MISSING should be serviced is it my case?

[Joakim Jakobsen]

Hi cedric! As you might know, iOS 11 is still in beta vesion. The beta version has shown to have problems with bluetooth connections and I do believe that is where the problem is. Maybe you could provide a sniffer trace to see what happens over the air?

[cedric]

sorry, versions are ioS9 and iOS10. I edit the question

[Joakim Jakobsen]

I see. Are you using the ble_app_uart example from the SDK? Which softdevice version are you using?

[cedric]

Yes, I use the ble_app_art as is from the SDK. The softdevice version is S132 4.0.2. It works well with a PC or an Android device, but not with an iOS device.

[Joakim Jakobsen]

I have tested it myself with an Iphone 7 with iOS 10.2.3, and it works fine. What device are you using? Also, how are you connecting the phone to your device?