[Q] Help me update my samsung GT-S5300

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http://forum.xda-developers.com – Hi i am new here in xda-developers as well as new in owning an android device. I have a question and i can't figure out why, so here it is. Why can't I update my Samsung galaxy pocket GT-S5300 in the settings>about phone>software update, when in the case my Samsung phone informs me that there is a new version and ask me if i would like to update it, and i did try to update it but after it restarts, it's stock to 15% and wont continue updating :crying: :crying:, BTW i don't really know what it updates, is it the kernell version? the firmware? the android version? or what? Here' (HowTos)