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I tested 20719 audio_watch demo.
It can be successfully paired and connected with Bluetooth speakers.
However, when the Bluetooth speaker initiates a connection to 20179 (such as automatic reconnection when starting up), it is always unsuccessful.
There should be L2CAP connection request after "HCI_Encryption_Change", but in fact there is nothing.
Attach hci trace files, from BTSPY
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ModusToolbox Bluetooth SDK
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HI @lei
Can you please let us know the steps you follow to reproduce this issue? Are you using default watch example or modified one ?
Can you also provide us the details about the Bluetooth speaker which you are using?
Regards,
Anjana
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HI
I used default watch example.
Use ClientControl discovery BR/EDR - AV Source connect - Disconnect - Restart the Bluetooth speaker to automatically connect to the previous device - Can't connect
702--Self developed product, A2DP sink based on Qualcomm qcc3007 chip(connect to mobile phone OK)
MI18--Xiaomi Xiao ai Bluetooth speaker
Airpods has another problem,L2CAP connect successful but "SET CONFIGURATION" rejected.
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Hello @lei
Sorry the thread was in a Locked state & we missed your thread.
Can you please let us know which BTSDK version you are using? We tried Watch example with Airpods on latest BTSDK version (4.2) in MTB 3.0 & it is working fine.
Regards,
Anjana