Here you can download MediaTek MT6571 based Scatter Stock Firmware for the Micromax A066 Android device. The downloadable file High Compressed in an archive, You will get the Flash File after extraction. Included contains Flash Tool, USB Driver, and how-to Flash manual instructions.
[*] Chipset: MediaTek MT6571.
[*] Driver: MTK USB Driver.
[*] Flash Tool: Smart Phone Flash Tool.
Firmware for Micromax A066
Build Number: MMX_A066_SW_V12_HW_V1.1_08102014
Android Version: v4.4.2 (KitKat)
Download Size: 499 MB
Micromax A066 Flash Tool & USB Driver
Flash Tool for Micromax A066
Micromax A066 USB Driver
[*] Backup: During the flashing process SP Flash Tool tool will erase user data from the phone. So you need to backup for restoring those files on your device.
[*] Device Information: The Micromax A066 phone powered by MediaTek MT6571 CPU. So you need to use MTK SP Flash Tool and MTK USB Driver to flash Firmware on this device.
[*] Flashing Information: You should use only the “Firmware Upgrade” option in SP Flash Tool when you want to reinstall or upgrade the Software of your device. – “Format + Download” option only for Engineering Purpose.