How to diagnose dead short on VCC, VDD main no power iPhone - Solutions in a hurry

This time in Solutions in a hurry, how to find shorted component on the logic boards VCC or VDD main line. For repairs visit http://iFixLogicBoards.com Screen stand: iPhone Screen JiG http://FundThatPart.com Microscope: Amscope SM-4 http://amzn.to/2xHn9kA LED: Amscope dual neck http://amzn.to/2xFmhbo Leaded solder http://amzn.to/2yMxr2M Desoldering wick http://amzn.to/2zqhfS6 Rebal solder paste http://amzn.to/2xVFN4c Flux http://amzn.to/2ylZxPw SuperCold Spray http://amzn.to/2hAEth8 Side camera: Sony a6300 http://amzn.to/2xFNUAT 3D Stencil: http://amzn.to/2AwWIf4