Make sure the phone has been removed from the phone case, and placed face down in the center of the chamber. Nothing should be touching the sides of the chamber, or the inside of the lid once closed (please note that some flip phones touching the inside of the lid are too thick for the Redux system).
If using a USB cable, make sure it does not go over the edge of the inside chamber. Even if the lid closes, the cable must be kept away from the edges of the chamber.
Locate the rubber gasket that goes around the chamber. It should be free of dust and particles. You may clean this with water and a paper towel if needed. Make sure it has enough time to fully dry. Confirm the rubber gasket is seated down and level around the chamber.
Once the above items have been checked, cleaned, and have had enough time to fully dry, restart the treatment.
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