Specialized repair shops have tools and techniques (like ultrasonic cleaning) to treat water-damaged electronics, though success isn't guaranteed.

If DIY drying fails, or if the liquid was something other than clean water (saltwater, sugary drinks are worse), consider taking the phone to a reputable repair shop that offers water damage treatment.
They will disassemble the phone, clean components with specialized solutions (often isopropyl alcohol) and ultrasonic cleaners to remove corrosion, dry everything thoroughly, and attempt repair.
Be aware that water damage repair often has a lower success rate and may not come with a warranty. Get a quote and understand the potential outcomes before proceeding.

N/A - Offers a potential last resort using professional cleaning methods when DIY fails.

Professional Water Damage Repair Service