Water damage to iphone SE--Seems to be working except for power button...should I bother repairing?

Blackfish1 wrote:

Is it worth taking it in for repair?

Absolutely! You would take the iPhone to an Apple Store or Authorized Apple Service Center for an assessment, not necessarily a repair. They would tell you how best to proceed.

Your iPhone is almost certainly damaged. You should learn the severity.

Water and other liquid damage to iPhone or iPod isn't covered by warranty - Apple Support

Rice overnight is a placebo; it does nothing. Rice for a week with the power off might help, but not because of the rice; because you gave it a week to dry out. The rice treatment is a myth. Silca Gel has a slight chance of helping, but only if it is used immediately and allowed to work for days. Turn the phone off and let it dry for several days. Note that water damage is progressive; it can continue to corrode the phone over days, weeks or months. So even if the phone works now it may not continue to work. So the best option is to follow sberman's advice. Make an appointment-->Genius Bar Reservation and Apple Support Options - Apple