Troubleshooting for Nokia products

Contact your operator immediately:

1. To block your SIM card.
2. To block your Nokia device (HW, IMEI code) to prevent it being used in the operator networks with any other SIM cards.  Note that not all operators provide this service (blocking device).

Note: Nokia customer support doesn't have the possibility to block the SIM card or the device, or track a stolen device.

To minimize the risks caused by the theft or loss of the device, there are some security features which you can enable in your device:

1. If your Nokia device supports phone autolock or security keyguard and you have turned it on, the phone cannot be accessed without entering a correct lock code. When enabling the autolock feature, it is important that you change the default lock or security code (12345) to your own lock code and don't forget this code.
2. Some Nokia devices support also remote locking. If you have enabled this feature, you can send a pre-defined text message to your device and lock it remotely. The device is locked if it is switched on and has your SIM card in it.

Note that the phone autolocking and remote locking cannot be enabled after the device has been lost, so it is important that you enable these security features already when taking the device in use.

These simple steps can help in a majority of cases.

Restart your phone

For phones with removable battery:
1. Switch your phone off
2. Remove the battery.
3. After a few seconds, put the battery in and switch your phone on.

For phones with non-removable battery:
1. Press and hold the power button until the phone vibrates and switches off.
2. Switch your phone on again.

Reset the settings

Restore the original factory settings as instructed in your phone's user guide.

Update the software

Make sure your phone is running the latest software. For downloads and assistance, go to your local Nokia website's support page.

If your phone is unresponsive, or it gets stuck showing Nokia logo, then try this: Press and hold both the Volume down and the Power keys for 15 seconds. This should get your phone to restart properly again. If this does not help, then follow next steps to perform OS reset.

Warning: Resetting your phone will return it to the same state it was in the first time you turned it on. All your personal content in the phone, including text messages and apps that you been purchased and downloaded (may be re-downloaded again) will be erased, and the phone will be restore to the factory settings.
Here are two options to follow, depending on whether you can access your phone's Settings screen or not.

Option 1: About menu

• Use this option if you can access your phone's settings.
  
• This option warns about data loss.

On the Start screen, swipe left, select Settings > About > Reset your phone.

Option 2: Hardware key combination

• Use this option if you forget or lose the password.
• Use this option if the phone fails to fully switch on when pressing the power on key.
• Note: No warning about data loss!
  

Nokia Lumia with Windows Phone 8

Step 1
Make sure the charger is disconnected.
1. Switch the power Off.
2. Press and hold the Volume down and connect the charger, if succeed an exclamation mark (!) is shown on the screen.

Step 2
Then input Keys in the following order:
1. Volume up
2. Volume down
3. Power
4. Volume down

Step 3
The phone will reset and boot up automatically. Please note that this may take several minutes.

Nokia Lumia with Windows Phone 7 

Make sure the charger is disconnected.
1. Switch the power Off.
2. Press and hold the Volume down and Camera keys.
3. Press and hold the Power key.
4. When the phone vibrates, release the power key, but continue holding the volume down and camera keys, until the phone reboots.

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.