What to do if the "home" key does not work on the Samsung A310F (2016)?

Question

Samsung

Hello, a small amount of liquid got on the screen of the phone, the above model. The power button and the home button stopped working. Soon it was possible to fix (it is not clear how) the shutdown key, but the "home" key remained unchanged. I do not want to go to the salon, so I'm looking for help here. Help at least someone!! pliiz