When the power level on the Smiley Touch is below 20%, the screen brightness is automatically lowered to reduce power consumption. If the brightness stays constantly low even when the Smiley Touch is connected to a power supply, this may be because it is not receiving enough power.
Check that you are using the original power cables and that they are properly connected. For detailed instruction on how to check the connection, read Why does the Smiley Touch not keep full charge?
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