Nextar MA809 - Manual (Page 45)

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(2) Connect the player to computer through the USB interface.
(3) Copy the upgrade files to the built-in memory of the player.
(4) Disconnect the player from the computer.
(5) Turn on the player and enter the main menu.
(6) Select “
”from the main menu and press the MENU button to confirm.
(7) Select “System Setting”and then press the MENU button to confirm.
(8) Select “Upgrade”and press the MENU button to confirm.
(9) Select “Yes”and press the MENU button to confirm and start upgrading.
(10) Wait for a few minutes before the upgrading is completed.
Troubleshooting
Problem Possible Cause Solution
The LCD displays
nothing when the device
is started.
Battery is too low. Charge the battery.
The volume is too low. Adjust the volume. No sound when playing
an audio file.
Bad audio file. Delete or skip the file.