Nextar Digital MP3 Player Owner's Manual page 33

Symptoms
The individually com-
pressed MP3 files
can not be played.
No response after
pressing button.
Can not open the
disk or prompt I/O
error after connecting
PC.
Causes
The MP3 files currently are compressed
with different compress rate and format,
while this player supports the standard
compressed MP3 only, please do not
adopts layer one or two compression.
HOLD switch is on, buttons are locked.
Caused by some improper operation.
Solutions
Download the standard
MP3 files again.
Keep pressing the HOLD
button to unlock
Firstly, connect USB
cable and click relative
upgrad-ing process.
Secondly, keep pressing
the PLAY button and
release until the
upgrading dialog box
appears after scanning,
then press START to
format and upgrade will
solve the problem.