1.1. Download
Please download "VX-VZ400_ MPEG_update_sirius.rar". This file is compressed with Win-Rar, which can be un-compressed using Win-Rar or Win-Zip.
1.2. Extract Files
When the files have been uncompressed to your computer, Copy the files "build.img" and "update.ver" to a BLANK USB thumb drive.
1.3. Uploading
Plug the USB Drive into the VX400 and turn on the unit.
Select the USB icon. An update icon will pop-up on screen, slect "ok".
1.4. Updating
The update should take about 1 minute. The unit should show "clarion" when complete.
Power off the unit.
Remove the USB Drive.
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