Chosen Solution
Nothing happens when pressing power button or using a power supply cable with ON/OFF button. Only thing is when I plug in a charger it will draw 2A right away. Removed the tristar and the mosfet and then I found a short on PP1v8_SDRAM. Reading online that short is very difficult to solve. Any advice? Nothing heats up when injecting 1.8V on that line, unfortunately.
The most common cause of 1V8_SDRAM shorts for me on the 7 plus were. 1. Tristar 2. Audio IC 3. Cap 4. SD_RAM Hopefully it is not the SD Ram.