A
Android Question
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Samsung Galaxy Y Jellybean ROM
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The ROM is basically the phone's operating system, user interface and pre-installed apps, sounds and images. So when you receive a system update, that is updating the ROM.
Some people like to customise their system software, to make the phone faster, or add features. This is referred to as a "custom ROM". You need to have rooted the phone (gained administrator access) to install these.
JellyBean is the codename for Android 4.1, 4.2 or 4.3 (4.0 was Ice-Cream Sandwich, 3 was Honeycomb, 2.3 was Gingerbread, 2.2 was Froyo, 2.1, etc).
So a JellyBean ROM would be a ROM based on Android 4.1. A custom JellyBean ROM would be one that has been built by an independent developer, while an official one would be one that was built by Samsung.
Some people like to customise their system software, to make the phone faster, or add features. This is referred to as a "custom ROM". You need to have rooted the phone (gained administrator access) to install these.
JellyBean is the codename for Android 4.1, 4.2 or 4.3 (4.0 was Ice-Cream Sandwich, 3 was Honeycomb, 2.3 was Gingerbread, 2.2 was Froyo, 2.1, etc).
So a JellyBean ROM would be a ROM based on Android 4.1. A custom JellyBean ROM would be one that has been built by an independent developer, while an official one would be one that was built by Samsung.