The iPhone 15 Pro Max is water-resistant, not waterproof. It has an IP68 rating, which means it can tolerate submersion in water to a depth of 6 meters for up to 30 minutes. However, this water resistance is not permanent and can decrease over time due to normal wear and tear. Apple explicitly states that water damage is not covered under warranty, and any liquid damage to the device will not be serviced by Apple[1][2][5].
If your iPhone 15 Pro Max has been exposed to water, you should check for signs of damage such as a dark display screen, distorted pictures, distorted phone calls, static when connecting headphones, inability to charge, or foggy camera. Additionally, you can look for corrosion marks at the charging port. If you see a red Liquid Contact Indicator (LCI), it indicates that the device has been in contact with water or a liquid containing water[3].
It is important to note that even if your iPhone 15 Pro Max shows no signs of water damage, it is still possible for internal damage to have occurred. If you are unsure about the condition of your device, it is recommended to contact Apple or an Apple Authorized Service Provider for inspection and assistance[2][5].
Citations:[1] https://discussions.apple.com/thread/255129416
[2] https://support.apple.com/en-hk/109350
[3] https://www.reddit.com/r/iphone/comments/1aw24dd/how_to_tell_if_my_iphone_15_pro_still_has_water/
[4] https://lykrepair.com/iphone-repair/iphone-15-pro-max/iphone-15-pro-max-water-damage-repair/
[5] https://support.apple.com/en-my/109350