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- Dec 29, 2018
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The best chance of recovery after a saltwater swim (of any electronic device) is to remove the battery and submerge the unit in freshwater as soon as possible, and leave it there until you can take it apart to thoroughly clean and dry it.
I would suggest that you dunk it in clean water several times sequentially to clear ALL the salt out. I would then try to dry it as quickly as possible, disassembling wherever possible and drying with towels or paper towels. The final step would be to then warm it gently to maybe 110 degrees F. oven to accelerate the final removal or any residual droplets that might get stuck between closely adjacent wires, etc. This water will be hard to get at with towels, and because the amount of it is so small, it tends to stay stuck in tiny spaces because of capillary action. 24 hours at 110 deg F. should do it.
A second way to do the final drying is to carefully place the parts on top of a layer of dry white rice in a closed vessel which is then covered to lock out the air of the room. The rice is very hydrophilic and will draw humidity from the air surrounding the grains. 24 hours there too. I once revived an iPhone that had been accidentally left standing in a deep pool of coffee in the bottom of a paper cup using the same routine: flush a number of times sequentially (I used distilled), that drying as much as you can using paper towels, kleenex, q-tips, etc. Then either rice or a warm oven.