Nokia Lumia 900

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Change the volume
Press the volume keys up or down.
The volume keys control all sounds, including the volume of alarms and reminders.
The built-in loudspeaker allows you to speak and listen from a short distance without
having to hold the phone to your ear.
Switch the loudspeaker on or off during a call
Select 
.
Access codes
PIN code
(4-8 digits)
This protects your SIM against unauthorised use or is required
to access some features.
You can set your phone to ask for the PIN code when you switch
it on.
If not supplied with your card or you forget the code, contact
your service provider.
If you type in the code incorrectly three times in a row, you
need to unblock the code with the PUK code.
PUK code
(8 digits)
This is required to unblock a PIN code.
If not supplied with your SIM, contact your service provider.
IMEI number
(15 digits)
This is used to identify valid phones in the network. The
number can also be used to block, for example, stolen phones.
You may also need to give the number to Nokia Care services.
To view your IMEI number, dial *#06#.
Lock code (security
code)
(min. 4 digits)
This helps you protect your phone against unauthorised use.
You can set your phone to ask for the lock code that you
define.
Keep the code secret and in a safe place, separate from your
phone.
If you forget the code and your phone is locked, your phone
will require service. Additional charges may apply, and all the
personal data in your phone may be deleted.
Get started
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