iPhone 6s not powering on after tristar repair attempt

Hi! im working on an iphone 6s that was charged with cheap cables. phone shutdown and never turn on, amp meter show that was not taking any amps. tristar tester confirmed that tristar was bad. i replaced the tristar but i think i went to long with the heat time (nothing shows marks of burn or melt, but i know that that chip sholud come in less time). now the amp meter is showing that is taking 0.35 amps but still nothing shows on the screen. no short on vcc main. any suggestion?

I solved it. It was the arc driver. It's located near the TriStar and during the repair y must overheated it. Replace that ic and now the iPhone it's working