Why does my iPhone boot loop after being underwater

A while back I had spilled some water on my iPhone 7 A1778, and right when I saw it, I powered the device off and took the device completely apart and cleaned all of the components with isopropyl alcohol. When I powered it back on, it seemed okay with the exception of touch function didn’t work for about 5 minutes. After this, I left it alone for a while and the batter ended up dying and when I went to charge it, it started boot looping Apple logo to a black screen repeatedly, but after about 20 minutes of boot looping it turned on. Is there any way to fix this issue? Can I still update since it boot loops?