iPhone 7 Plus won't turn on after battery & charging port replacement
I bought this iPhone 7 Plus from eBay that said that the phone was dropped in water and it has refused to turn on ever since. So when I received the item, I place the logic board in isopropyl 91% alcohol and let it evaporate for a couple of days. Then I replaced the charging port and the battery of the phone. However, the phone still doesn't turn on. iTunes doesn't recognize the phone either. What could be the problem?