Firmware on Sigmatel players can be extracted, i have one too and messed around with it a lot. They also can always be recovered from a bad flash if you got a working backup.
But if it ain't broken, don't try to fix it.
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For my dreams i hold my life...
I miss my Meizu M6SL... Currently rocking a Sony Ericsson w595 on Samsung in-ear phones. Does fine, but it's not a chipod... 
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