Nokia 3120 phone faq
Nokia 3120

Get specific answers to technical questions on compatibility, connectivity, Bluetooth, and other troubleshooting topics.


  1. How do I power on or power off my Nokia phone?
  2. How do I install or remove the battery on my Nokia phone?
  3. How do I use the keyguard on my Nokia phone?
  4. How do I set up and use voice mail on my Nokia phone?
  5. How do I select or customize a profile on my Nokia phone?
  6. How do I restore factory settings on my Nokia phone?
  7. How do I adjust the earpiece volume on my Nokia phone?
  8. How do I change the ring tone being used on my Nokia phone?
  9. How do I change the security settings on my Nokia phone?
  10. How do I set up and use the screen saver on my Nokia phone?

1. How do I power on or power off my Nokia phone?

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Warning: Do not switch the phone on when wireless phone use is prohibited or when it may cause interference or danger.
  1. To turn your phone on or off, press and hold the Power key on top of the phone for at least 3 seconds. If the phone displays "Insert SIM card"even though the Subscriber Identity Module ( SIM) card is properly inserted, or "SIM card not supported", contact your service provider.
  2. If the phone asks for a Personal Identity Number ( PIN) code, enter the PIN code (displayed as **** ) and select OK.
  3. If the phone asks for a security code, enter the security code and select OK.

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2. How do I install or remove the battery on my Nokia phone?

Warning: Before installing the Subscriber Identity Module ( SIM) card, always make sure that the phone is switched off and that you have removed the cover and battery. Keep all SIM cards out of reach of small children.


Remove the back cover and battery

  1. With the back of the phone facing you, push the back cover release button.
  2. Slide and lift the bottom of the back cover to remove.
  3. After you have removed the back cover, insert your finger into the finger grip and lift the battery from its compartment.


Install the SIM card


The SIM card and its contacts can easily be damaged by scratches or bending, so be careful when handling, inserting or removing the card.

  1. Use a fingernail as a lever to unlatch the metal SIM card holder.
  2. Swing the SIM card holder open.
  3. Insert the SIM card into the holder, beveled corner first, with the gold coloured contacts on the SIM card face up (away from the phone).
  4. Swing the SIM card holder closed. The gold coloured contacts on the SIM card will meet the gold coloured contacts on the inside of the phone. Gently press the SIM card holder into the phone until it clicks into place.


Install the battery


The SIM card must be installed before installing the battery.

  1. Position the battery so the gold coloured contacts match up with those on the phone. The battery label should be facing toward the phone.
  2. Insert the battery, contact end first into the battery slot.
  3. Snap the other end of the battery into place.


Replace the back cover

  1. Place the back cover just below its locked position on the back of the phone.
  2. Slide the back cover toward the top of the phone to lock the cover into place.


Note: Always store and use the phone with the covers attached.


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3. How do I use the keyguard on my Nokia phone?

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Keyguard disables your keypad to prevent accidental key presses (for example, when your phone is in your pocket or purse).
  • To lock the keys, select Menu, then select the Star key.
  • To unlock the keys, select Unlock, then select the Star key.


Note: When Keyguard is enabled, the keypad and display cannot light if you press a key. Press the power button briefly to activate the keypad and display lights.


Automatic Keyguard


 You can have your phone automatically lock the keys after a time you specify.

  1. Select Menu > Settings > Phone settings > Automatic keyguard > On.
  2. Set the delay time, then select OK.


Note: When Keyguard is on, calls may be possible to emergency numbers (for example, 911 or other official emergency number). Enter the emergency number and press the Talk key. The number is displayed only after you have entered its last digit. Keyguard does not prevent unauthorized use of your phone.


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4. How do I set up and use voice mail on my Nokia phone?

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If you subscribe to voice mail, your service provider will furnish you with a voice mailbox number. You need to save this number to your phone to use voice mail.


When you receive a voice message, your phone lets you know by beeping, displaying a message, or both. If you receive more than one message, your phone shows the number of messages received.


Save your voice mailbox number


Your service provider may have already saved your voice mailbox number to your phone. If so, the number will appear in step 2. Select OK to leave the number unchanged.

  1. Select Menu > Messages > Voice messages > Voice mailbox number.
  2. If the box is empty, enter the voice mailbox area code and number and select OK.


Call and set up your voice mail

  1. Once you have saved the voice mailbox number, press and hold the 1 key.
  2. When you connect to voice mail and the prerecorded greeting begins, follow the service's automated instructions to set up your voice mail.


Listen to your voice messages


Once you have set up voice mail, you can dial the number in one of four ways:

  • Dial the number, by using the keypad.
  • Press and hold the 1 key.
  • Select Listen if there is a notification message in the display.
  • Select Menu > Messages > Voice messages > Listen to voice messages. After a brief pause, your phone dials the voice mail number.


Once you connect and the prerecorded greeting begins, follow the automated instructions to listen to your voice messages.


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5. How do I select or customize a profile on my Nokia phone?

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Profiles define how your phone reacts when you receive a call or a message, how your keypad sounds when you press a key, and more. Ringing options, keypad tones, and other settings for each of the five available profiles can be left at their default setting or customized to suit your needs. Select and customize the most suitable profile for your situation, such as when you are in a meeting or outdoors.


The profiles available are:

  • Normal
  • Silent
  • Quiet
  • Loud
  • My profile 1
  • My profile 2


Select a profile

  1. Select Menu > Profiles.
  2. Select a profile from the list.


Customize a profile


You can customize any of the profiles a variety of ways.

  1. Select Menu > Profiles.
  2. Select the profile you want to customize, select "Customize", then select the customizing option you want.


Set a timed profile


Timed profiles can be used to prevent missed calls and can be set up to 24 hours in advance.

  1. Select Menu > Profiles.
  2. Select a profile, then select "Timed".
  3. Enter the time for the profile to expire and select OK.

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6. How do I restore factory settings on my Nokia phone?

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You can reset some of the menu settings to their original values.
  1. Select Menu > Settings > Restore factory settings.
  2. Enter the security code (the default is 12345) and select OK.


Note: Data that you have entered or downloaded is not deleted. For example, names and numbers in Contacts are not affected.


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7. How do I adjust the earpiece volume on my Nokia phone?

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To adjust the earpiece volume:
  • To increase the volume of a call, press the Scroll right key.
  • To decrease the volume of a call, press the Scroll left key.
  • When adjusting the volume, a bar chart appears in the display indicating the volume level.

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8. How do I change the ring tone being used on my Nokia phone?

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To change the ring tone being used:
  1. Select Menu > Profiles.
  2. Select the profile you want to customize and select "Customize".
  3. Select "Ringing tone" and select the ring tone for incoming calls. Select Open gallery > Tones for more ring tone options or select Open Gallery > Recordings to use a voice recording.

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9. How do I change the security settings on my Nokia phone?

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Note: When security features that restrict calls are in use (call restriction, closed user group and fixed dialing), calls may be possible to certain emergency numbers in some networks (for example, 911).


Select Menu > Settings > Security settings.

  • To set the phone to ask for your Personal Identification Number ( PIN) code every time the phone is switched on, if this function is supported by your Subscriber Identity Module ( SIM) card, select "PIN code request".
  • To restrict incoming calls to and outgoing calls from your phone, select "Call restrictions".
  • To restrict your outgoing calls to selected phone numbers (if this function is supported by your SIM card), select "Fixed dialing".
  • To specify a group of people whom you can call and who can call you, select "Closed user group".
  • To set the security code for your phone, select "Security level". The preset security code is 12345.
  • To change the security code, PIN code, PIN2 code or restriction password, select "Access codes".

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10. How do I set up and use the screen saver on my Nokia phone?

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The screen saver is activated when no function of the phone is used after a preset period of time. Press any key to deactivate the screen saver.


Select screen saver

  1. Select Menu > Settings > Screen saver > Select s. saver.
  2. Scroll to a folder that contains images and select Open.
  3. Scroll to the image of your choice and select Options > Set as s. saver.


Set screen saver timeout


You can set your phone to display a screen saver after a preset time or after a custom time (up to 60 minutes) of your choosing.

  1. Select Menu > Settings > Screen saver > Timeout.
  2. Select "10 seconds", "30 seconds", or "Other".

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