: Download the firmware file (if in RAR format, extract it first) and copy the .pkg file directly to the root of the USB drive.
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 . Download IRIS 43E6 Firmware part01 rar
If you specifically require a multi-part RAR (often found on technician forums for "dump" files), here are the details for the most common version of this hardware: Firmware Details for IRIS 43E6A : 43E6A Main Board : 5851-A7K10G-0P00 Resolution : 1920×1080 (Full HD) Panel : HV430FHB-F10 Software Type : USB Upgrade How to Install Prepare USB : Format a USB drive to FAT32. : Download the firmware file (if in RAR
: 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 If you specifically require a multi-part RAR (often