Nokia Lumia 900

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Remove an application from your phone
You can remove installed applications that you no longer want to keep or use, to
increase the amount of available memory.
1 On the start screen, select  .
2 Select and hold the application to remove, and select 
uninstall
. You may not be
able to remove some applications.
If you remove an application, you can reinstall it without purchasing it again, as long
as it is available in Marketplace.
If an installed application depends on a removed application, the installed application
may stop working. For details, see the user documentation of the installed
application.
Security
Change your PIN code
If your SIM card came with a default PIN code, you can change it to something more
secure.
Select   >  , swipe left to application settings, then select 
phone
 > 
change SIM
PIN
.
The PIN code can be 4-8 digits.
Set your phone to lock automatically
Want to protect your phone against unauthorised use? Define a security code, and
set your phone to lock itself automatically when you're not using it.
1 Select   >   and 
lock+wallpaper
.
2 Switch 
password
 to 
On
, and enter a security code (at least 4 digits).
Keep the security code secret and in a safe place separate from your phone. If
you forget the security code, and cannot recover it, or you enter the wrong code
too many times, your phone will require service. Additional charges may apply,
and all the personal data in your phone may be deleted. For more information,
contact a Nokia Care point or your phone dealer.
3 Select 
Require a password after
, and define the length of time after which the
phone is locked automatically.
Unlock your phone
1 Press the power key, and drag the lock screen up.
Connectivity & phone management
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