Nokia 002P2W7 User Manual - Page 155

Green tips, Save energy

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Green tips Q: How do I calibrate the screen? A: The screen is calibrated at the factory. If it is necessary to recalibrate the screen, select Menu > Settings and Phone > Touch input > Touch screen calibration. Follow the instructions. Q: Why do I get the error message Expired certificate or Certificate not valid yet when I am installing a downloaded application? A: If Expired certificate or Certificate not valid yet is displayed, even if the certificate should be valid, check that the current date and time in your device are correct. You may have skipped the setting of date and time when starting the device for the first time, or the mobile network may have failed to update these settings to your device. To resolve this, select Menu > Settings and Phone > Phone mgmt. > Factory settings. Restore the factory settings, and when the device restarts, set the correct date and time. 23. Green tips Here are tips on how you can contribute to protecting the environment. Save energy When you have fully charged the battery and disconnected the charger from the device, unplug the charger from the wall outlet. You do not need to charge your battery so often if you do the following: ● Close and disable applications, services, and connections when not in use. ● Decrease the brightness of the screen. ● Set the device to enter the power saver mode after the minimum period of inactivity, if available in your device. © 2010 Nokia. All rights reserved. 155

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Q: How do I calibrate the screen?
A: The screen is calibrated at the factory. If it is necessary to recalibrate the screen,
select
Menu
>
Settings
and
Phone
>
Touch input
>
Touch screen
calibration
. Follow the instructions.
Q: Why do I get the error message Expired certificate or Certificate
not valid yet when I am installing a downloaded application?
A: If
Expired certificate
or
Certificate not valid yet
is displayed, even if the
certificate should be valid, check that the current date and time in your device are
correct. You may have skipped the setting of date and time when starting the device
for the first time, or the mobile network may have failed to update these settings
to your device. To resolve this, select
Menu
>
Settings
and
Phone
>
Phone
mgmt.
>
Factory settings
. Restore the factory settings, and when the device
restarts, set the correct date and time.
23.
Green tips
Here are tips on how you can contribute to protecting the environment.
Save energy
When you have fully charged the battery and disconnected the charger from the
device, unplug the charger from the wall outlet.
You do not need to charge your battery so often if you do the following:
●
Close and disable applications, services, and connections when not in use.
●
Decrease the brightness of the screen.
●
Set the device to enter the power saver mode after the minimum period of
inactivity, if available in your device.
Green tips
© 2010 Nokia. All rights reserved.
155