Quote Originally Posted by dreamur View Post
Hi peeps. After so much tinkering I was able to upgrade my old AT&T 3gs to v6.1.3 and did a factory unlock as well. Now it looks like a 4S! My problem is the frequent shut down even if battery is half charged and will not boot up unless connected to a charger. is this something related to the battery?

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most likely and most probably sir.

if you let it that way, the next thing that will happen is damaged component on the board.