The latest firmware of Micromax S300 has been recently released by its developers and free download links are available on several flash file stores. Firmware always doing good job in your phone. Just like the Windows operating system or Linux controls your computer, a mobile operating system is the software platform on top of which other programs can run on mobile devices. Here, we will explain you how to install different types of operating system on your handset with the help of videos. You will need to flash your phone at those moment if phone is working slow or completely break with the reason of its firmware. Some times mobile firmware is going to corrupt due to unfair use. So at those stage you will need to must flash it with its latest firmware.