Apple introduces the iPhone 15, iPhone 15 Plus, iPhone 15 Pro and iPhone 15 Pro Max Water damage cannot be repaired, you need a replacement phone. If you don't have AppleCare+, you may have to pay the full replacement cost in case of serious damage, but this is a recent change in wording. Water resistance is not the same as water resistance. In any case, the fall may be the culprit here and not the water.
In any case, I suggest that you make an appointment with the Genius Bar at your local Apple Store or at an Apple-authorized service provider to have it reviewed and given you your options. If you chose to sign up for an AppleCare+ plan when you purchased this phone, this could be one of two accidental incidents, and any repair or replacement should have a reduced cost. I know the difference between water resistant and water resistant. Anything that's remotely water resistant should have survived this fall, but fine.
Sorry, I didn't want to admonish you, but you'd be surprised how many posts we have here where people don't. Or you feel that Apple is deceiving about the differences. Here we don't even talk about repairs done by yourself or by third parties. Apple simply won't try to repair an iPhone in which liquid detectors, such as those in the SIM tray, are turned on in red.
Big mistake, the newly purchased iPhone 11 pro had problems and after 2 months of dealing with Apple, they shipped a new iPhone 11 pro. This can be a bit extreme, but even after following the procedure mentioned above, if the wet iPhone doesn't turn on after 48 hours, then you have to go the extra mile. Be very careful when using a hair dryer to repair damage caused by iPhone water. Turn on the cold wind setting and keep the dryer in low power mode and gently run it over your phone.
You can keep your phone at a distance to make sure that the air it blows doesn't cause any harm. If this causes your phone to heat up, turn off the dryer immediately. Since a water-damaged iPhone has already been rescued, there's a good chance that the data stored on your iPhone will become corrupted in the future. Therefore, you should be prepared to search for a new phone and to frequently back up your iPhone data to the PC to minimize loss when your iPhone runs out one day.
Apple is water resistant, but most users don't know the details about the splash, water and dust resistance capabilities of their own iPhone models and get scared when the iPhone falls into the water. You can't go back in time and prevent your iPhone from falling into the water, but you can make an effort to prevent your iPhone from being damaged by water. If the iPhone doesn't turn on after coming into contact with water, it can be due to one of two causes: a short circuit has occurred or the water has damaged or corroded some internal components and damaged the circuit.