E-Mail Key; Multitasking; Memory; Free Memory - Nokia E51 User Manual

E-mail key

To open your default mailbox, press the e-mail key briefly.
To create a new e-mail message, press the e-mail key for a
few seconds.

Multitasking

You can have several applications open at the same time. To
switch between active applications, press and hold the home
key, scroll to an application, and press the scroll key. To close
the selected application, press the backspace key.
Example: When you have an active phone call and
want to check your calendar, press the home key to
access the menu, and open the Calendar application.
The phone call remains active in the background.
Example: When you are writing a message and want
to check a web site, press the home key to access the
menu, and open the Web application. Select a
bookmark or enter the web address manually, and
select Go to. To return to your message, press and hold
the home key, scroll to the message and press the scroll
key.

Memory

There are two types of memory into which you can save data
or install applications: device memory and memory card.
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Free memory

To see how much memory is currently in use, how much free
memory remains, and how much memory is consumed by
each data type, select Menu
details Phone memory
>
Tip: To ensure that you have adequate memory,
transfer data regularly to a memory card or computer,
or use File manager to delete files you no longer need.
After you install applications to a compatible memory card,
installation files (.sis, .sisx) remain in the device memory. The
files may use large amounts of memory and prevent you from
storing other files. To maintain sufficient memory, use Nokia
PC Suite to back up installation files to a compatible PC, then
use the file manager to remove the installation files from the
device memory. If the .sis file is a message attachment, delete
the message from the Messaging inbox.

Memory card

Select Menu Tools > Memory.
>
If you cannot use a memory card in your device, you may have
the wrong type of memory card, the card may not be
formatted for your device, or the card has a corrupted file
system. Your Nokia device supports the FAT16 and FAT32 file
system for memory cards.
Your Nokia E51
Options Memory
> >
or Memory card.
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