VTech BM3800N - Turn on or off dim mode

Turn on or off dim mode - BM3800N | BM3800N-2
The dim mode is to help you save the parent unit power. Y
our parent unit display will dim automatically after 10
minutes of inactivity, in which there is neither key pressed nor alert received from the baby unit.
While the screen is dimmed, any keypress or alert message will trigger the screen to return to the
preset brightness level. After 10 minutes of inactivity, it will resume to dim mode.
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