I have an xs max ,Today I was riding my bike in rain and after I went home and Face ID didn't work my phone was wet and wiped the water with a cloth after I wipe a I saw pink colour line on the display after some time full screen went green and and then it went black and a small part near the notch was green .I was disaapoined because Apple has mentioned it waterproof
How to fix it ?
iPhone XS Max, iOS 14
Apple has never claimed any iPhone is "waterproof."
It sounds like water damage may have occurred, which is not covered under warranty.
Water and other liquid damage to iPhone or iPod isn't covered by warranty - Apple Support
But they have advertise that we can take iphone 7 in rain
Check this link-https://www.youtube.com/watch?v=ij0yjV0mRHQ
They have said "IP68 dust/water resistant (up to 2m for 30 mins)"
It was in my rain coat pocket and I didn't even travel more than 5 minutes
My display went black
