Manually Update Android One to Lollipop
Android Lollipop (Android 5.1) update for Indian Android One devices has confirmed and is being rolled out via OTA (over the air). Users who are not able to get official OTA, can install the update manually on their Android One phones such as Spice Dream UNO, Karbonn Sparkle V, Micromax Canvas A1.
Captured by an XDA contributor ghpranav, this official Android 5.1 Lollipop OTA update (build LMY47O) is meant for Micromax Canvas A1 and can be installed via stock or custom recovery. Users of Karbonn Sparkle V and Spice Dream Uno phones need to make small changes in the build.prop file. Read on to know how to install official Android 5.1 OTA update manually.
Besides the Lollipop features, this new Android 5.1 update will fix many bugs found in the previous build, such as memory leak issues, battery issues, sudden app closing without warning issue and bring several performance improvements to the phone.
Because this is an official OTA, you do not need to factory reset your device for installing this Android 5.1 Lollipop OTA update. Therefore, you will not lose your data while flashing this new firmware. Also, you will get the official updates from Google in future.
WARNING: Follow the instruction at your own risk. We will not be liable if any damage occurs to your device and/or its components. The procedure is recommended for technically talented users only.
Install Official Android 5.1 Lollipop OTA Update Manually on Android One Devices
Before you start flashing the firmware, make sure that your device is running on the stock ROM. However, you can install it on a rooted or non-rooted and custom recovery installed phone.
2. Copy the downloaded firmware zip file to your phone memory
3. Boot your phone into recovery mode. To do so, power off your phone, then press the Power and Volume up buttons at the same time. Now, select recovery mode, you will see a dead Android with exclamation mark and “No Command” written below it. Hold Power, then tap Volume up (follow the order properly) and leave it.
4. In recovery menu, select install zip from SD card option, go to the directory where the OTA Zip file is stored, select it and flash.
5. Once the update process is completed, reboot your phone.
Enjoy Android 5.1 Lollipop on your Android One. (Source – XDA)