Whether or not it can be fixed is ultimately unknown, but you can try. Here is the link to the device page:
LINK
You can use the guides to take the DS apart to 1: get it dried out 2: check for and repair any damage caused by the water.
There will likely be oxidation on connections, and basically anything metal inside. You will want to clean this with >90% isopropyl alcohol and cotton swabs. The oxidation will usually be a white or green powder. Blow off what you can with canned air, then swab the rest. Be sure to use at least 90% alcohol, any lower percentage is diluted with water, and that would defeat the purpose.
Good luck!
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I dropped my Nintendo DS Polar white in the toilet by mistake! #RIPNintendoDS (25 December 2023-21 August 2024) I couldn't get my screen to work.
crwdns2934271:0crwdnd2934271:0 Adam Withey crwdne2934271:0