Nextar MA750 - Manual (Page 46)

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6. Trouble shooting
If there is no picture displayed after the player is connected to PC and cannot serve as a
storage device or cannot be powered on after the battery is fully charged, please refer to the
following steps to update the software in the player.
(1) Download the most updated software from the attached CD (if any) or from the website
and execute the setup.exe files in the folder to complete the installation.
(2) Long press power button of the player for five seconds and then plug in the USB
cable.
(3) Execute the updated software installed by step (1) to start software upgrade and release
the Power/Stop button.
(4) The upgrade of software may format the player, so please copy the music or files in the
player to PC first.
(5) If the software upgrade program cannot detect the player, please unplug the USB cable
and repeat step (2) and (3) until the player is detected and the software upgrade is
completed.