It all depends on the android phone you have. I have the htc hero and i recently went from 1.5 to 2.1. just go into settings and check for updates. However, an update from 1.5 to 2.0 or 2.1 is big so you may have to check for it online on your computer. just go to your cellphone makers site (ex: HTC) and check. If your phone is not set to get android 2.0 or 2.1 then you may be able to root it and install a custom ROM.
You can upgrade your LGAS740 to android 2.2 by upgrading its operating system.
You can upgrade the Cloudfone Thrill on an android device by accessing the android's app market and locating the app in question. From here, you can either click "uninstall" or "upgrade".
yes, you can upgrade to 3.0
The Samsung GT -i8262 will get Android upgrade to 4.2 late, this year 2014.
You can upgrade your Lenovo S660 to Android KitKat using the Android 4.4.3 KitKat update for Moto E.
Yes but you have to root your phone
No, it is not possible to port Android OS into the Nokia Asha 306.
The upgrade to the Samsung I9100 from Android 2.3 to 4.0.3 is free. There is a tutorial:Title: How to update Samsung Galaxy S2 to Android 4.0.3 ICS (Ice Cream Sandwich)See the related link for further information.
You can upgrade your android using the settings menu. But it depends on some models because some require you too upgrade it through a computer. Or If you have a custom ROM or custom firmware to update that you would have to use a recovery. Hope this helped:)
Usually, in order to update your device from one version of Android to another, you must receive an update from your carrier or the device's manufacturer.
If a person cannot upgrade the OS (Operating System) on an Android device it might be that it is not receiving an internet signal. It could also be that the Android device in question is so out of date that the software to upgrade is no longer compatible.
Your Lenovo S660 can be upgraded to Android KitKat using the Android 4.4.3 KitKat update for Moto E.