Mpman BT20 - Manual (Page 30)

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formatting is completed, you can download files and use it
again.
Note: Firmware upgrade is to improve and optimize the
performance of the player. The normal work of the player
would not be affected even if the firmware isn’t upgraded.
The wrong operation of upgrading firmware would cause
the device not to work normally! The firmware upgrade
software of this player is not applied to other series of
players.
Troubleshooting
If the player can not be played normally, please check as
follows:
Troubles Causes
It cannot be turned
on
Check whether the player is powered on
or not and whether the machine program
is damaged or not
The player is
blocked
Push the power switch to restart the
player
It can not be played
Check whether the machine is powered
on or not
Confirm the volume is not in “0” level,
check the earphone is connected well
and keep the earphone clean
Format the disk again
It can not
upload/download
the file or the disk
can not be found in
computer
Insert USB cable totally well after the
Power on. Correctly install the driver
again.
It can not be
recorded
Check the enough memory and the
electricity
Words on display
are deformed
Make sure that you have selected the
correct language