Troubleshooting
Unable
to
starting
up
1. Check
whether
the
power
is
suffici
ent
No
sound
whe
n play
music
1.
Tu
rn
up
the
volume
2. Check
whether
the
earphones
ar
e
well
i
nserted.
3. Check
whether
supports
the
music
forma
t.
4. Check
whether
the
music
file
has
been
damaged
Unable
to
d
ownload
files
to
device
1.
try
an
other
micro
SD
c
ard
2. Check
whether
the
device
has
be
en
correctly
connected
with
computer
.
3. Check
whether
there
are
enough
stor
age
space
in
th
e device
3.Try
another
USB
cable
Ther
e
is
noise
w
hen
play
the
device
1. Check
whether
the
plug
of
earphone
is
c
lean
2. Check
whether
the
music
file
has
been
d
amaged
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