Nokia N78 - Manual (Page 21)

● The backlight of the display increases the demand
on battery power. In the display settings, you can
change the time-out after which the backlight is
switched off, and adjust the light sensor that
observes lighting conditions and adjusts the display
brightness. Press , and select Tools >
Settings > General > Personalisation >
Display and Light time-out or Light sensor .
● Leaving applications running in the background
increases the demand on battery power. To close
the applications you do not use, press and hold
, scroll to an application in the list, and press C.
Pressing C does not close Music player. To close Music
player, select it from the list and Options > Exit .
Free memory
Many features of the device use memory to store data.
The device notifies you if the device memory or the
memory card memory (if available) is low.
To view how much memory different data types
consume, press , and select Tools > File mgr. , the
desired memory, and Options > Details >
Memory .
To free device memory, transfer data to a compatible
memory card (if available) or to a compatible PC.
To remove data you no longer need, use File manager
or go to the respective application. You can remove the
following:
● Messages in the folders in Messaging and retrieved
e-mail messages from the mailbox
● Saved web pages
● Contact information
● Calendar notes
● Applications shown in Application manager that you
do not need
● Installation files (.sis or .sisx) of applications you
have installed. Transfer the installation files to a
compatible PC.
● Images and video clips in Photos. Back up the files
to a compatible PC using Nokia Nseries PC Suite.
If you are deleting multiple items and a note Not
enough memory to perform operation. Delete
some data first. or Memory low. Delete some data
from phone memory. is shown, delete items one by
one, beginning with the smallest items.
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