Here you can download Broadcom BCM21663 based Stock Firmware for the Micromax A69 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: Broadcom BCM21663.
[*] Driver: Broadcom USB Driver.
[*] Flash Tool: Broadcom MultiDownloader.
Firmware for Micromax A69
Build Number: JDQ39 eng.20140330.015228 release-keys
Android Version: v4.2.2 (KitKat)
Download Size: 331 MB
JDQ39 eng.20140330.015228 release-keys
[*] Backup: During the flashing process Broadcom 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 A69 phone powered by Broadcom BCM21663 CPU. So you need to use Broadcom MultiDownloader and Broadcom USB Driver to flash Firmware on this device.