[SOLVED] Music Lag after unlocking screen

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I just buy SGS3. I rooted the phone. I found that the music lag for few seconds after unlocking the phone.

UPDATED
I have found the reason. It was not lag. It is because othet notification sound (I muted my phone). If NFC is enabled, there is a notification sound after unlocking the phone even Screen Lock Sound is disabled in Setting.
Just disable NFC, everything is fine.
I have sent an email to Samsung to ask for a solution if I want NFC keep enable.

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I'll give it a try

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