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It not even shows the apple logo (not responding to the reset sequence). It isn't recognise by the OS (linux or windows).
The reason that I said "the error can be reproduced" is that wwywong and ercoppa both experienced the problem, and they encountered this issue in their normal usage; while I simply repeated what they did as described in this thread: http://forums.rockbox.org/index.php?topic=25671.0, and I got the same result. I think that can be called reproduced.
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