From my own experience, yes, you so can. I might warn you though, it needs rooting your device, which can brick your phone. I'm not responsible for any damage, so here what I do.
Example: You have an android phone with Android 2.2, and you want android 2.3 gingerbread. Before doing anything else, go to XDA developers forum, and search for you device and the custom roms. If you see any android 2.3 roms in there, then go in, and read the comments to make sure that it's working on other phones too. If people are commenting with "thanks", "it's great", "perfect ROM" or any other positive feedback, then you can root your phone, and put that custom ROM on your device.
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.
The latest released version of Android is 4.4.4
Latest android version is 5.1.2
As of August 2014, the fastest version of Android OS is version 4.4.4 (KitKat). The next Android version (Android "L") is set to debut in the fall.
To determine your phone's current version of android, you need to: click on "settings", click on "about phone", and scroll down the page. Your phone's current version of android will be displayed beneath "Android Version."
If the FX4 version of an F250 is not provided on the website, you can contact the manufacturer directly.
Yes, the Kitkat Android version is a good operating system.
Android Kitkat version 4.4 deemed to be the best, try it.
Android 4.3 is a version of Android operating system.
Android 5.0 lollypop.
android beta.
Android operating systems are desirable indeed and fortunately Kindle has an Android version. This version is desirable for the Android lovers in your life.