Help me out? Power regulator moving.

switched to 5v and at the chip it still sounds the same is the chip fryed? Is it possible that the heat from the soldering to the 12v hurt the chip? Video is still fine though
 
switched to 5v and at the chip it still sounds the same is the chip fryed? Is it possible that the heat from the soldering
 
well now the gc no longer works haha , got another one coming but i think the diode went on the other side, its missing . theres solder pads for it
 
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