How I can transfer my music files to my Lumia windows 7

You need to have the appropriate software and the Zune PC app installed on your PC.  You may need to restart your computer, and you may need to install additional software.
Depending on what you need to install, and how much data you are transferring, this may take a while.
Some music files can be protected by digital rights management (DRM). These songs do not appear in your Zune music collection and you can't sync them on your Lumia.

How to give your phone a unique name

Here’s how to do it: Plug your phone in to your computer, and open up either the Windows Phone app or the Windows Phone app for desktop (depending on what you’re trying to sync). In the Windows Phone app, go to Settings > Preferences. Under Name your phone, type the name you’ve chosen. In the Windows Phone app for desktop, just click Settings to get started.

If you want to go old school, you can also change your phone’s name in the Windows File Explorer. Plug your phone in to your computer, and open File Explorer. Look for your phone under Computer, and then right-click on it. Click Rename, and type in the name you’ve chosen.

How can I improve my battery life on my Nokia phone?

• Turn Bluetooth off when you do not need it.
• Specify that your Nokia phone does not scan, or scans less often, for available Wireless LAN (WLAN) networks in the background when you do not need WLAN connections (to turn off scanning, disable Show WLAN availability in Wireless LAN settings). 
• If you have set Packet data connection to When available in connection settings, and there is no packet data coverage (GPRS), your Nokia phone periodically tries to establish a packet data connection. To prolong the operating time of your Nokia phone, select Packet data connection > When needed.
• The Maps application downloads new map information when you scroll to new areas on the map, which increases the demand on battery power. Prevent the automatic download of new maps.
• If the signal strength of the cellular network varies much in your area, your Nokia phone must scan for the available network repeatedly. This increases the demand on battery power.  If the Network mode is set to dual mode in the network settings, the Nokia phone searches for the UMTS network. To use only the GSM network, select Network mode > GSM. 
• The back light of the display increases the demand on battery power. In the display settings, you can change the time-out after which the back light is switched off, and adjust the light sensor that observes lighting conditions and adjusts the display brightness.
• Leaving applications running in the background increases the demand on battery power. Close the applications you are not using.
• Turn off vibrate function of your Nokia phone, using just the ring tone.
• Avoid using moving or animated pictures or videos for your Nokia phone's background.
• Turn off your Nokia phone whenever you do not plan to answer any calls, for example while you are sleeping.
• Make sure your phone is running the latest software. For downloads and assistance, go to your local Nokia website's support page.

If the battery loses the power fast even though there is no features consuming the power, the battery may be wearing out and you need to replace it with a new one.

ZUNE DOSEN’T DETECT MY WINDOWS PHONE 7

If the ZUNE is not detecting the WINDOWS PHONE 7 then take these steps to connect your WINDOWS PHONE 7 to your computer.

Firstly ensure your computer is configured correctly to connect with WINDOWS PHONE 7 and check your usb data cable and try to plug in another port. If the problem is still there. Then verify your usb connection to verify you usb connection take mentioned below steps.

1.    Right-click on my computer and then click Properties.

2.    Then click on the device manager tab.

3.    A window will appear with the list files on the left side click on the name of your computer your Windows Phone 7 should be listed under Portable Devices. If Device Manager is not detecting your phone then physically inspect your phone and computer usb port and always use that cable which have provided to you with the phone. Because some phone supplied with optional charging cables that cannot be used to establish a data connection with your computer.try to use another cable.

4.    Check the dust in the usb port on the phone. If you found the dust in the usb port then use compressed air to remove it.

After all that the next step is Reinstall The Zune Software. If the problem is still there. then update your drivers from the Device Manager.

WHY I AM GETTING PROBLEM DURING SENDING A MMS FROM LUMIA PHONE

When you see the error during sending MMS from the LUMIA PHONES the take some steps to solve this problem which are mention below.

1)      Firstly check the NETWORK SETUP APP, which you can easily download from the Nokia Collection on Marketplace. Then open the app and select your local internet and MMS settings.

2)      If the data connection is really lost you just switch Flight Mode on and off . this will reset the connection

3)      If you are running a WiFi Network connection in background. It will interrupt you during to make the connection so first switch off your Wi-Fi networking off .