Robot vacuum shows E16 and cannot start; sometimes after firmware update.

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

Corrupted firmware, Interrupted update, Main board flash memory fault, Incompatible firmware version

Safety: Keep the robot on the dock to ensure stable power during any firmware operations.

Restart robot: Power cycle the unit and wait for it to fully boot.
Check app: Open the Laresar app and see if a firmware recovery or re-update option is available. Follow the instructions carefully.
Avoid interruptions: Do not move the robot or cut power during firmware flashing.
If E16 remains after recovery attempts: The main control board's memory may be damaged and require replacement.

Professional Required 5/5

Laresar Main Control Board

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