Can't playback mp3 via A2DP

[lankeen]

I implemented the buetooth profiles with linux PC + USB bluetooth dongle, and the mobile phone is SonyErission w880i. I take this program as the handset to use.
When I start A2DP to connect mobile phone to playback the mp3, there is no song heard. I checked the log info and found:after init_request () following the A2DP profile, the response from mobile phone is timeout error.

I have tried with other brands: Nokia, Samsung, A2DP can work well. Is it the compatible issue with SonyErission w880i?
If you know it, could you help me to solve it? Thanks a lot.

[Joshua9891]

i think i may have a solution but i will require to know whether you have connected your device before.

Free TV

[susan]

I think maybe it is disconnected.