Before we get into upgrades, it’s important to know that some manufacturers are in the habit of adding different “skins,” or user interfaces, to whichever stock version of Android they’ve selected for a device. As a result, Ice Cream Sandwich, say, isn’t going to look or act the same across the assorted technologies you and your friends are packing. A manufacturer may tweak the operating system to work with a tablet’s cameras or interface with a cellular digital service. That’s what you get with an open source system. (But let it be said that there’s spirited debate among the Android community about whether all this customization is necessary or just plain ridiculous.)
Every so often, a new version of the Android tablet’s operating system becomes available. It’s an Android update because Android is the name of the operating system, not because the Android tablet thinks that it’s some type of robot.
Yes, you can put off an update by simply dismissing the update notice: Touch the Home icon. However, it is strongly recommended that you upgrade.
You can manually check for updates: In the Settings app, choose About Tablet or About Device. (On Samsung tablets, look on the General tab in the Settings app.) Choose System Updates or Software Update. When the system is up-to-date, the screen tells you so. Otherwise, you find directions for updating the Android operating system.
Touching the Check Now button isn’t magic. When an update is available, the tablet lets you know.
Non-Android system updates might also be issued. For example, the tablet’s manufacturer may send out an update to the Android tablet’s guts. This type of update is often called a firmware update. As with Android updates, you should accept all firmware updates.
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