Gtmedia V8 Nova Blue Firmware -

A USB Flash Drive: Formatted to FAT32. High-speed USB 2.0 or 3.0 drives are recommended.

This creates a recovery file. If the new firmware has a bug you hate, you can reinstall the old firmware and then restore this backup. gtmedia v8 nova blue firmware

Power on the receiver while repeatedly pressing the button on the remote (or holding the power button on the unit, depending on the exact hardware revision) until the upgrade screen triggers automatically. Where to Find Official Firmware A USB Flash Drive: Formatted to FAT32