iPhone 5S PMIC faulty

Hello,

I am trying to revive iPhone 5S motherboard. It was reflowed then it worked and again died again. Second reflow went bad. All of the shields came off and the board does not turn on.

This is the history of the device. I cleaned it when I got it and noticed shorted smd capacitor and filter near button flex (see image). There were more shorts. Next to the A7 chip the capacitors has slight short above them with solder bridge. I removed solder bridge above the capacitors (between + and -). It has some misplaced small SMD chips as well. Nothing that can't be repaired. It has damaged or slightly melted battery connector.

After cleaning in ultrasonic cleaner I noticed PMIC has some weird lines that can't be cleaned. I am posting photos.

Can you please help me to track whether PMIC is good or not? I have soldering equipment and experience. What voltages should be on what coils/capacitors or other components? Jessa Bethany can you please take a look and tell me your suggestion?

Thank you.

Near button flex: http://s27.postimg.org/is2z9ly4f/board.j...

PMIC: http://s3.postimg.org/ahrnya5kj/IMG_0207...

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