Format a USB drive to FAT32 and copy the extracted firmware files (often in .bin or .img format) to the root directory.
Searching for specific multi-part firmware files like "part06.rar" for the Micromax L32 CANVAS Download Micromax L32 CANVAS Software part06 rar
If an update is found (e.g., a version around 700-800 MB), select the button to install it directly. Format a USB drive to FAT32 and copy
With the TV off, insert the USB and hold the button while plugging it back in until the update starts. Third-Party Support & Resources a version around 700-800 MB)