VAST WIFI-HIFI Instruction For Users - page 22
Manual is about: WiFi Multi-Room HiFi Audio System
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VAST INTERNATIONAL | VAST ELECTRONICS
Please do not play music or do other operation. Please make sure not to cut
off the power before the operation is finished or restarted.
When the device leave factory, we already upgrade the firmware of the
WiFi-HiFi system to the latest version. If has special needs, when you need to
update the firmware to other version, please upgrade the firmware manually.
(Please do not download other unknown firmware; otherwise it will cause
permanent damage)
Local update
In the "Firmware Upgrade" Browser to enter the local location of the
update package.
Firmware upgrade page
Click on the "Apply" button to begin the upgrade.