: In Auto mode, the firmware reacts to dust concentrations, increasing power when it detects more debris and scaling back to conserve battery when floors are clean.
Ensure the MyDyson app itself is updated to the latest version via your phone's app store.
: When set to "Auto Mode," the vacuum reads the particle data stream. The software instantly instructs the motor to increase suction for high debris loads and lower it on cleaner surfaces to preserve energy.
Do not turn off the vacuum. A hard reset during a firmware flash can brick the mainboard. Instead, force close the MyDyson app, restart your phone’s Bluetooth, and reopen the app. The vacuum will usually resume the update.
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No, not officially. The original V15 is not designed to recognize or control the Submarine wet floor head, as this would require a firmware update that the hardware does not support. However, some later V15 models (Gen 2) may support it.