'Hush Hush' | Photo courtesy of Amazon Prime Video
: Download the firmware file (if in RAR format, extract it first) and copy the .pkg file directly to the root of the USB drive.
: Insert the USB into the TV's port while it is powered off. Press and hold the power button on the TV (not the remote) and plug the TV into the power outlet. Release the button when the update progress bar appears on the screen. Official Sources & Support
For other IRIS-branded products (like scanners or industrial controllers), you can check these official portals: : Official IRIS Download Center . Security/Controllers : AddSecure IRIS-4 Firmware .
