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.

You get an error message trying to access Windows Marketplace for Mobile

You receive one of the following error messages when you try to access Marketplace: 

•	Marketplace could not connect to the server. Please check your data connection and try again.
•	Windows Marketplace for Mobile cannot connect. There may be a problem with the Marketplace service right now. Check your Internet connection and try again.

Solution:

The Marketplace for Mobile service was discontinued on May 22, 2012.
  

Starting on this date, you will no longer be able to browse, buy, or download applications directly on your Windows Mobile 6.x phone by using the Windows Mobile 6.x Marketplace application and service.

How i can do the factory reset on my Nokia Series 40

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

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

• To reset all preference settings and delete all settings personal data, select Restore all (or All).
• 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.

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.

How I can reset my Windows Phone 7 to its factory settings

1.	From Start on your Windows Phone, flick left to the App list.
2.	Tap Settings, then tap about.
3.	From the about screen, tap reset your phone, located at the bottom of your screen.
4.	Click yes to confirm your reset.

How I can resize the tiles size on the home screen of Nokia lumia phones to a different size?

Now  you can easily re size the tile size of home screen on windows phone 7.8 and 8 .Just click on the tile and hold it for a second or two and then click on the arrow icon. Depending on the app, the tile can be of two or three different sizes. When you are ready, click the screen. You also readjust tiles. Click and hold a tile, drag and drop it to the new location, and click the screen