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Dyson V15 Firmware Update Info

A major bug fix. Older firmware would trickle-charge the battery non-stop, reducing lifespan. The new update enables "smart charge," where the vacuum stops drawing power once 100% is reached, resuming only when it drops to 98%.

As of early 2026, the most current stable firmware version for the Dyson V15 Detect is: dyson v15 firmware update

Version 3.1.8 (Released Q4 2025)

Check for update:

Wait – The update takes 5–10 minutes. Do not turn off the vacuum or close the app.

Verify – Once finished, the vacuum will restart. Re-check the firmware version in the LCD menu.

Note: If the app says "Up to date," you already have the latest version for your region. A major bug fix