How can I get a cover-art image via Bluetooth BIP

I want to get Cover-Art Image over Bluetooth. From the SDP Discover iPhoneSE, it support Cover-Art Feature. I connect and config OBEX Channel with L2CAP ERTM, it is successful. I send connect_request the OBEX Connect, the iPhone always no any response, and l2cap s-frame response from iPhone always failed.

From the Apple Developer, it need Apple Authentication Chip. Is it still necessary now? Are there any other ways to obtain album pictures?

How can I get a cover-art image via Bluetooth BIP
 
 
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