I haven't been around in a while so things might have changed since I've been here, but the firmware you're running on that is not upgradeable. You will most likely brick you're player if you try.
If this information has changed, let me know 'cause I've got an old player I'd like to play around with.
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 ops: 1GB Black Hacked Chipod ops:
2 GB Black Temptation Player 
8) WHITE MEIZU M6 8GB 8) |