Why does my GPS Phone 600 screen automatically become dark?
Tap
,
Settings, the System tab, Backlight, and then the Battery power or the External
power tab. You may find that if you use battery power, the backlight automatically
shuts down after 30 seconds by default; the external power shuts down after 1 minute
by default. If you think these times are too short, you may extend them as needed.
,
Settings, the System tab, Backlight, and then the Battery power or the External
power tab. You may find that if you use battery power, the backlight automatically
shuts down after 30 seconds by default; the external power shuts down after 1 minute
by default. If you think these times are too short, you may extend them as needed. 
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