: Place the file in the root directory (not inside any folder) of the USB drive. Flashing Process : Power off the TV and unplug it from the wall. Insert the USB drive into the USB port. Press and hold the Power button on the TV (not the remote).
: Before downloading, verify your TV's mainboard number (printed on the green PCB inside the TV) to ensure the firmware is compatible. USB Installation Steps Format the Drive : Use a USB 2.0 drive formatted to FAT32 . Download IRIS 32E390S Firmware USB part05 rar
Files labeled "part05.rar" usually belong to multi-part archives (e.g., .part01.rar through .part05.rar ). You must download into the same folder and extract only the first part to reconstruct the complete firmware image. : Place the file in the root directory
If your TV is stuck on the logo or in a boot loop, this USB method is the standard recovery path. How to update any Samsung TV's firmware using a USB drive Press and hold the Power button on the TV (not the remote)