Troubleshooting for Nokia C2-03

Select Menu > Settings > Rest. factory sett. (or Reset device or Restore factory sett. or Rest. fact. sett.).

1. To reset only preference settings, but keep all personal data, such as contacts, messages and media file, select Restore settings only (or Restore sett. only or Settings only).
2. To reset all preference settings and delete all personal data, select Restore all (or All).

3. Enter the security code before the restore. If you have never changed your security code, then enter the default code 12345. If your phone still requests a security code or if you have forgotten it, please bring it to the nearest Nokia Care point for inspection.

Security keyguard lets you lock your phone’s keypad with a security code. The security code is asked when you unlock the keypad.

To activate or deactivate the security keyguard:

1. Select Menu > Settings > Phone (or Phone settings or Device) > Security keyguard.
2. To activate or deactivate, enter the current security code (The preset code is 12345).

Note: Note: Once you change your security code, the default setting is no longer valid. If you have changed your security code and do not remember the new code, contact your dealer or local Nokia Care Point.
You can answer a call or make an emergency call while the security keyguard is activated.

There are three ways to turn on or off the predictive text input on your device.

• At any text entry screen, for example, in message editor, press and hold Options, predictive text is turned on or off, depending on its previous mode. 

• Or at any text entry screen, select Options > Predictive text (or Prediction, or Prediction options, or Dictionary).

• At any text entry screen, for example, in message editor, press the “#” key twice quickly, then the predictive text is turned on or off, depending on its previous mode. 

Press and hold the key 1 until your device dials to your voice mailbox number or select Menu > Messaging > Voice mail (or Voice messages, or More > Voice messages) > Listen to voice mails (or Listen to voice msgs. or Listen to voice messages). For the first time use, enter your voice mailbox number which you get from your service provider.

Note: The voice mailbox is a network service, contact your service provider for subscription. If supported by the network, the voice mail icon (the icon on the key 1) will display on the device to indicate new voice mails.

No, you can't. Series 40 devices run on java-based application with .jar file extension.

To remove one or more applications from your Series 40 device:

• Go to Menu > Apps > Extras (or Menu > Apps > Apps and games)
• Locate the applications you want to remove and select Options > Mark
  • On non-touch devices you have the option to select Options > Delete which will remove the application immediately.
  • If the Mark (or Delete) option are grayed out you are trying to remove a system application which is not allowed.
• Mark the application(s) you want to remove
• Select Options > Delete marked
• Select Yes to confirm the deletion or No to cancel

Select Menu > Settings > Display (or Main display) > Font size.

In two (double) SIM phone, only one SIM card can be standby/active at a time.

In dual SIM phone, both SIM cards are available at the same time when the device is not being used (so-called 'dual standby'), but while one SIM card is active, for example, making a call, sending or receiving a message, or transferring data, the other is unavailable.

Both SIM cards can be connected to the network at the same time, but while one SIM card is active, for example, making a call, sending or receiving a message, or transferring data, the other is unavailable.

If your device is a dual SIM device (like X1-01 and C2-00), which means both SIM cards can be connected to the network at the same time, your device has two IMEI numbers.

If your device is a two SIM device (like C1-00), which means only one SIM card can be connected to the network at a time, your device has only one IMEI number.

Only sim 1 IMEI is used to check for warranty.