Vacuum shows E16; LED indicators behave abnormally after a failed firmware update via app.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Interrupted firmware update, Low battery during update, App communication failure, Faulty flash memory on PCB

Safety first: Keep the unit powered off when not performing updates.

Ensure the battery is at least 50% charged.
Open the Roidmi app and check for a firmware update. Attempt the update again, following on-screen instructions and keeping the phone close to the vacuum.
Do not use the vacuum or press buttons during the update process.
If E16 persists after a successful re-flash attempt, the main control PCB may have defective memory and will need replacement.

Hard 4/5

Main Control PCB

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