It’s best to get it open asap.
I just dropped my in the pool, non-chorine, and shook it dry as best I could. I have tools so I opened it up when I got home about 20mins after. Water was inside the phone.
I removed the sim slide and soaked up water near and on the sim connector.
Soaked up water in-between the springs along the edge near the battery, inside the lightning port, 3.5mm jack, near the ear piece, all around the battery, etc.
I recommend using a coffee filter as it wicks the best, but a single ply of a paper towel, napkin, etc. Don't use a nose tissue on the inside that has moisturizers in it, just in case these might be left behind.
Mine is just now being closed back up. Not sure yet if all this worked. I’ll attempt to get back to this comment on my success or failure.
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