Most reported failures come down to five setup mistakes rather than the tool. Here they are, with the fix for each.
For a complete overview, see our full guide: Diagnosing what is actually wrong.
Mistake 1 — Bluetooth left on
By a wide margin the commonest. A paired device in range — earbuds in a bag, a car system, a smartwatch —
takes the audio silently, so the tone never reaches the blocked speaker. Turn the radio off in settings rather
than just disconnecting, and confirm you can hear the tone coming from the device itself.
Mistake 2 — Adjusting the wrong volume
Phones keep separate levels for media, ringer, calls and alarms. Pressing volume up before audio is playing
usually adjusts the ringer. Start the tone, then adjust.
Mistake 3 — Holding the phone flat
The diaphragm's airflow alternates outward and inward, so over a full cycle it roughly cancels. Gravity is
what produces net outward movement. Held flat, freed water settles straight back beside the opening. Grille
facing straight down, tilted about 45 degrees, changes results more than any setting.
Mistake 4 — Running cycles back to back
Expelled water sitting on the grille gets drawn back in on the next cycle's intake stroke. Stop and blot
between cycles. Two cycles with a wipe outperform three without.
Mistake 5 — Maximum volume
Past roughly 80 percent the waveform clips and the diaphragm stops travelling smoothly, so the motion becomes
a buzz rather than a pump. Effectiveness falls while loudness rises, and the voice coil heats for no benefit.
The correct sequence
Case off, blot dry, Bluetooth off, volume 70–80 percent while playing, grille facing down at 45 degrees,
30–60 second cycles with a wipe between each, two or three times.
Afterwards
No charging for 24 to 48 hours, regardless of how the speaker sounds.