Install Android 5.1 Lollipop (Official) Update on Micromax Canvas A1 (Android One)

Micromax Canvas A1 Android 5.1 Lollipop (Android One) update install guide, using this you can install official OTA update (LMY47O) even if its not been sent to your phone. You can use the same method to install Lollipop on the Spice Dream Uno and Karbonn Sparkle V. There is no root required, and updating through this method won't void warranty and you will receive future OTA updates as well.