iOS BLE cannot correctly read the model number.

[Leo Mo]

After updating from SDK V2.1.3 OTA to SDK V2.9.0, iOS cannot correctly read data such as the model number, but Android can read it normally.

Turn off Bluetooth in the system, turn it back on, and it can be read normally after connecting.

[Simonr]

Hi Leo

Thank you for your patience here. We don't have a specific theory of what is happening here I'm afraid. With the nRF Sniffer for BLE (https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/lessons/lesson-6-bluetooth-le-sniffer/topic/nrf-sniffer-for-bluetooth-le/) for example, you can select sniffing the address and operations of a specific device, so it should be possible to capture the communication of one specific device even in a busy environment. I think that would help us a lot.

For the information you shared, I haven't found anything obviously wrong with it yet, but I'm not done reviewing it. I will get back to you later this week with more information.

Best regards,

Simon

[Leo Mo]

Hi Simonr,

I will try to capture the communication . You can also use the example I provided for testing.

/cfs-file/__key/communityserver-discussions-components-files/4/peripheral_5F00_ancs_5F00_client_5F00_sdk_5F00_v2.1.3.zip

/cfs-file/__key/communityserver-discussions-components-files/4/peripheral_5F00_ancs_5F00_client_5F00_sdk_5F00_v2.9.0.zip

Best regards,

Leo Mo