If you cannot find the specific split archive parts online, the most reliable way to update your firmware is through the TV's built-in system settings or by contacting the manufacturer directly. :
: Do not turn off the TV or remove the USB until the process is 100% complete, as this can permanently damage the software. Where to Find Firmware Files Download ONIDA LEO40FAIN Software part5 rar
Go to the icon (gear icon) in the top right corner of your home screen. Select Device Preferences . Choose About . Select System Update . If you cannot find the specific split archive
Hold the on the TV (not the remote) for 5–10 seconds until the LED starts blinking, which indicates the update has started. Select Device Preferences
:If you have the complete firmware file (usually a .bin or .img file), you can install it manually: Format a USB drive to FAT32 .