Do not turn off the power during this process. The TV will reboot once finished.
Copy the extracted firmware file (e.g., all_upgrade_v510.bin ) directly to the root directory of the USB. Do not put it inside a folder. Step 4: Installation Guide Turn off your IRIS SAT TV and unplug the power cord. Insert the USB drive into the TV's USB port. Download IRIS SAT 40E510S Firmware part3 rar
Use a USB flash drive (ideally 8GB or smaller) and format it to FAT32 . Do not turn off the power during this process