Android 4.0 Ice Cream Sandwich
how to flash :
Install with SPFlash tools
step 1 : To get started, download stock ROM for smartphone based on your device’s model
step 2 : Once done, extract the Stock ROM package and save the extracted files in a folder in your PC. Next, Download SP Flash Tool, install it in your computer and open its Window.
step 3 : In the SP Flash Tool window, click on “Scatter-loading” and load the scatter.txt file located in the extracted ROM files (Step 2). Once done, you will lot of options below. Select files from the extracted folder for each one of those options.
step 4 : Now, select “Firmware Upgrade” from the drop-down menu in SP Flash Tool. Once done, switch off your smartphone by removing its battery. After a while, reinsert it in your device but don’t switch it on.
step 5 : Next, click on the “Download” option in SP Flash Tool and connect your Micromax Unite 2 to the computer using the original USB data cable. This will start the flashing process, and it will take 3-4 minutes to get completed. Once it is over, you will see a success message in SP Flash Tool.
step 6 : Now, remove your device from the computer and boot it into the recovery mode by pressing the Volume Plus, Volume Minus, and Power Buttons simultaneously for few seconds.
step 7 : Once in recovery mode, select “Wipe Data/Factory Reset” option and delete all the user data. Once done, reboot your device normally.