I have the same problem the home button in my iphone 7 is not working and one of 2 speakers not working because I washed my phone and tried it for a quarter of an hour and I was playing music and then I dried my phone out of the water and then put it on the charger for 10 minutes and after 10 minutes I looked at my iphone written "The home button May Need Service" So Is the solution is turn off the phone for 12 hours or 5 hours ? please I'm in Saudi arabia we don't have Apple store help me :(