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Practical guides to clearing a blocked speaker, written around what physically happens inside the phone. Why water damages a speaker after it dries, which cleaning methods are worth using, and how to tell a blockage from a fault before you pay anyone to look at it.

Device guidance is drawn from Apple, Samsung and manufacturer documentation, with the relevant sources listed on each article. If you just need the fix rather than the explanation, the speaker cleaning tool is on the front page.

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