This error is sometimes caused by a corrupted MDataStore.db3 file used by Nokia Music Player. This file will need to be deleted with Nokia Music Player closed. Then open the player and the datastore file will be rewritten by the application:
Close Nokia Music Player and delete the MDataStore.db3 file:
*The MDataStore.db3 file is also used by Nokia Suite to store user data, such as: SMS, calendar entries and contact information. Therefore, users of Nokia Suite are advised to backup any user data before removing the .db3 file.
- Vista and 7 C:\Users\<user>\AppData\Local\Nokia\Nokia Data Store\DataBase\MDataStore.db3
- XP C:\Documents and Settings\<user>\Local Settings\Application Data\Nokia\Nokia Data Store\DataBase\MDataStore.db3
Both of these locations are in hidden folders. So, to view them users will need to:
Open Windows Explorer > Tools > Folder Options > View > Show Hidden Files and Folders
Once Nokia Music Player is opened again the MDataStore.db3 file will be rewritten to this folder.
This FAQ applies to Nokia Lumia phones with Windows Phone 8, and a computer running on Windows 7, Vista or Windows 8. If you have Windows XP use the search field on this page to find this related FAQ: What should I do if my Nokia Lumia phone is not recognized by a computer running Windows XP?
Start by disconnecting your phone and other USB devices connected to your PC. Exit the PC software, such as Nokia Suite, Zune and Windows Media Player, which can establish a USB connection at the background. Use Ctrl+Alt+Del to see and manage processes that are running on your PC.
Check that you have latest updates installed on your PC
Here are two options to follow (ensure that Administrative rights are available):
Check your USB connection
Make sure that you are using the USB cable which was included with your phone. You may also try another port on the computer, but do not use a USB hub or the ports located on the front of your computer. Most versions of Windows (excluding Windows RT) allow you to connect to your Lumia with Windows Phone 8 by using Windows Explorer, which you can use to validate that you have an active connection.
Check and update your device driver
Confirm that your PC is able to communicate with Windows Update service through firewall(s).
You can also use the Windows Phone app, which is a free app for PC and Apple Mac. With the app, you can sync media content between your computer and your phone. This includes the music, pictures, videos, movies, ringtones, and podcasts on your computer that you want to copy to your phone. Windows 8 installs the app automatically. With Windows 7, you can download it from www.windowsphone.com. If you have a Mac, to download and install the Windows Phone app, go to the Mac App Store.
Fully charge the battery of your phone. If your phone does not start charging, unplug the charging cable and plug it again into your phone. When fully charged, try to switch your phone on.
Íf your phone is still dead, please see the repair options at your local Nokia support pages.
If you cannot connect the headset to the compatible phone, proceed as follows:
If you cannot find or connect to another device using Bluetooth, check the following:
If the problem persists after the above actions, contact your local Nokia Care Point.
Do the following:
Contact your operator immediately:
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:
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.
In case you use a device with integrated GPS receiver, please have a look into the manual of your device on the location of the GPS receiver. When using the GPS receiver, hold it upright in your hand at an angle of approximately 45 degrees, with a clear view of the sky. Make sure that your hand does not cover the GPS receiver. The time it takes to establish a GPS connection may vary between a few seconds and several minutes. Establishing a GPS connection in the car may take longer.
We recommend that you make use of Assisted GPS (A-GPS) to speed up the connection time for your GPS. A-GPS uses your mobile internet connection to connect to a Nokia server that tells your device which GPS satellites it will be able to connect to, substantially reducing the time taken to get a GPS fix.
If no satellite signal is found, consider the following:
Note: The GPS operations take their power from the battery. Using an internal GPS receiver or a Bluetooth connection to an external GPS receiver may drain the battery faster.
Your Nokia device requests PIN (Personal Identification Number) and PUK (Personal Unblocking Key) codes to protect your SIM card and device against unauthorized use. Note that all PIN and PUK codes are provided by your network operator. Nokia is not able to provide you PIN or PUK codes.
Please note the following:
If you have forgotten or simply do not know the codes, you must contact your Network Operator for assistance. However, if you have already contacted but the code does not work, you should consider getting a new SIM card from your Network Operator.
The calling phone number may not match with a contact name and the name is not shown in the following situations when an incoming call or SMS arrives:
If the problem persists, make sure your Nokia device is running the latest software. For downloads and assistance, go to your local Nokia website.