Android 5.1  Lollipop is one of the most significant in recent Android history. It improves your experience in many areas including visual style and how you interact with your device.

After installing the software update, the users will notice a whole new colorful look and feel to device. Notifications will appear on the lockscreen and are intelligently ranked by type and who sent them.

Very high priority notifications will pop up briefly over other applications so that users can take action. While your phone’s display is off, Ambient Display can show notifications without turning on the full display. This will be triggered when a notification arrives. You will see notifications similar to that shown on the lockscreen. You can turn this feature on in the Display menu in Settings, and note that it will increase the power consumption of your device.

Lollipop includes a new flashlight option as part of Quick settings (swipe down with two fingers from the status bar to see it).

The users can quickly select different Wi-Fi access points or different paired Bluetooth devices with a new pull-down menu on each tile. Conditional settings tiles that only show if you use the feature - like “Invert Colors” or “Hotspot” - can now be hidden via a long-press on the tile.

For a successful installation, the company recommends installing the update when the battery in your phone is at least 50 percent charged and a Wi-Fi network.

If you have received a notification message for this update:

Select "Yes, I’m in".
After the software is downloaded, select "Install now".
After the software is installed, your phone will re-start automatically.
Your phone is now updated with 23.21.15
If you have not received a notification message for this update, follow the steps below to manually update your phone:

Select the Settings icon in the apps menu.


Select "About phone".
Select "System updates".
Select "Yes, I’m in". After the software is downloaded, select "Install now".
After the software is installed, your phone will re-start automatically.
Your phone is now updated to 23.21.15