Hello Apple, I am a Bluetooth peripheral developer. Recently, I encountered the following issue while developing a Bluetooth smartwatch on iOS: I have a Bluetooth smartwatch that supports CTKD connections. After pairing and connecting with an iOS device, notifications from iOS can be sent to the watch normally. However, after a few days, I noticed that my watch stopped receiving any iOS notifications. Upon checking my phone's Bluetooth settings, I found that the watch's Bluetooth connection on the phone system had disconnected and did not automatically reconnect. After manually reconnecting, I observed that only the BT (classic Bluetooth) connection was established, while the BLE (Bluetooth Low Energy) connection remained disconnected. I would like to understand what could be causing this issue and how to resolve the problem of Bluetooth reconnection.

After a prolonged BLE connection, we have noticed that ANCS frequently pushes a large number of "remove" messages (event ID 0x02), after which the device no longer receives any notifications. Is this behavior a result of system design, or could it be a potential bug? I would appreciate any insights or experiences that others can share.