There are various reasons why your Samsung phone may not turn on. If your Samsung phone is not turning on and you notice a boot current of 50mA-80mA, you should start by checking the power supply voltage. If there are no issues with the voltage, then the problem is most likely related to the CPU.
However, if there is an abnormal voltage reading, then you should check the corresponding faulty position on the board.
In this particular case, the faulty component has been identified as the PMIC U7003. To resolve the issue of the Samsung S7 Edge not turning on, you can replace the PMIC with a new one. You can watch a video to learn how to troubleshoot the Samsung S7 Edge if it can’t turn on.