Most Micromax devices require a flashing tool like SP Flash Tool and the correct VCOM drivers installed on your PC to apply the software update.
This site maintains a database of Official Micromax Stock Firmware for various Canvas models which can be used to update or restore devices. Download Micromax L50 CANVAS Software part04 rar
Since multi-part archives are usually uploaded by the community, you can search for the full firmware set at these locations: Most Micromax devices require a flashing tool like
To use "part04.rar," you must have all other parts (part01, part02, etc.) in the same folder. Opening the first part will automatically extract the entire combined firmware. Download Micromax L50 CANVAS Software part04 rar
Finding a specific multi-part RAR file like "part04" for the Micromax L50 Canvas