To install this firmware via USB, you will need the SP Flash Tool and Micromax USB Drivers . Important Notes:
Finding specific parts of multi-part archives (like "part14.rar") for older firmware can be challenging as original hosting links often expire. Download MICROMAX L40CANVAS Firmware USB part14 rar
Look for the file on reputable firmware repositories. AndroidMTK Micromax Stock ROM RepairMyMobile To install this firmware via USB, you will
Instead of looking for part14.rar in isolation, search for the complete set. The firmware is likely labeled as Micromax 50 Canvas 3 Stock Firmware (Flash File) . To install this firmware via USB
Based on search results, the firmware you are looking for appears to be related to the Micromax Canvas series (specifically potentially the L40Canvas-3/50Canvas-3 model).
Is the device a or a smart TV (L40Canvas) ?