Datavideo SE-4000 8-Channel 4K Video Switcher - Manual (Page 123)

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5. Insert the USB drive into the Service port at the rear of the control panel.
6. Power ON the control panel then press the Setup button to open the Setup menu on the
built-in 5 inch LCD screen. .
7. Tap “Software”  “Upgrade”
8. You will be prompted to confirm the upgrade, tap Yes to proceed.
9. You will see “Upgrade” in red while the control panel is being upgraded.
10. When “Upgrade” turns green, the control panel has been successfully upgraded.
11. Reboot the control panel to finish the upgrade.
12. To confirm, open the Setup menu and check the software version in Software.