- At the Home screen, tap Security.

- At the Security screen, tap Menu.

- Select Toolbox.

- Enter the 4-digit master code.

- At the Toolbox (1 of 3) screen, tap the → arrow.
- At the Toolbox (2 of 3) screen, tap Clean Screen.

- The screen will be frozen for 30 seconds to allow you to clean it.

- Press the Back arrow twice to return to the Security screen.

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