Use a tool like WinRAR to extract the .rar file. You should see a single .bin file or a folder containing the firmware.
Never turn off the TV or remove the USB drive during the flashing process. This can "brick" the motherboard.
Plug the TV back in. In many Onida models, the update will start automatically (indicated by a blinking LED or progress bar). Download ONIDA LEO50FSAIN Software USB part08 rar
If it doesn't start, hold the on the TV panel while plugging it in. Important Safety Warnings
A common source for Onida LED TV stock ROMs and USB update files. Use a tool like WinRAR to extract the
To download and install the firmware (Software USB part08), you typically need to access specialized technical forums or firmware repositories, as official direct downloads are often restricted to authorized service centers. Where to Find the Firmware
A popular repository for TV repair technicians that hosts bin files for various Onida models. USB Update Procedure This can "brick" the motherboard
Use a FAT32-formatted USB flash drive (ideally 8GB or smaller).