My phone black screen and cannot be charged.
I often wipe the back cover of my phone with a wet napkin, and I often see that the rear camera will fog up. I didn’t take this seriously, but the phone camera suddenly couldn’t be turned on the other day. I thought it was a system update problem. Until today, my mobile phone suddenly couldn't be turned on in the morning. I tried to charge the mobile phone, but the mobile phone did not respond. I also tried various key combinations and it didn't work.
What surprised me was that I was able to manually open the back cover of this phone without a heated back cover. I see a little water inside, so I suspect that the phone's waterproof failure is causing this problem.
What I want to ask is how to detect what is wrong with the phone? Is the motherboard broken or the battery broken so that I can further repair my phone.
After I further disassembled the phone, I found that the motherboard had water in several places, as shown in the figure:
Several parts of the motherboard are obviously corroded and turned green. Can the motherboard be repaired in this situation? What should I do?
Unfortunately, I still cant’t turn on my phone after cleaning the motherboard.
What should I do now?