No Power or charging after water damage
I recently got an iPhone 5s which was advertised as not powering on or charging. After opening the phone I discovered the moisture indicators were dark red and hence assume water damage was the issue. I have taken out the logic board and cleaned it with isopropyl alcohol and a soft toothbrush but there was still no signs of life. I managed to the test the screen on a fully functional 5s and it worked flawlessly. I also put the logic board into the the working 5s but it still did not power on or charge. I don't want to give up on it yet but I would appreciate it if anyway could give me some tips for repairing the phone/logic board.