X-Micro Tech. EVA 130 - Manual (Page 25)

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Can ‘t play the private
compressed music
files. The music files currently are
compressed with different compress
rate and format, while this Player
supports standard compressed music
only, please do not adopts layer one
or two compression.
Download the standard music files
again.
No response after
pressing button. HOLD switch is on, buttons are
locked. Press the HOLD switch to the opposite
direction.
Can’t open the disk or
prompt I/O error after
connecting PC.
Caused by some improper operation.
Hold the V+button, and then connect
USB cable, when there is a circle
appears in the first box,then press
firmware feature to format ,the upgrade
will be ok until the circle change to be a
tick.