I need to reset and unlock simcard. - Apple Iphone A1387

To reset the iPhone follow the steps below;

1. Begin by holding the sleep/wake button at the top right of the device and the Home button at the bottom center of the face at the same time.
2. Hold them both until you see the screen go black. In some cases, you may need to keep holding them even after the red power-off slider appears. If it appears, just keep holding it.
3. Wait until the silver Apple logo appears.
4. When this happens, you can let go - the iPhone is rebooting.

An iPhone reset should not normally remove or delete any data or settings.(site:http://ipod.about.com/od/iphonetroubleshooting/qt/reset_iphone.htm)

Is your phone locked with any particular network?To unlock an iPhone the remote unlock service would be a better option because, you need not give your mobile to someone else nor do you have any chance to enter the wrong unlock codes. To get such an unlocking service for your iPhone approach Prounlocking.com and by submitting the country and network to which the mobile is locked to you will be able to remove the restriction from the respective network. This will be a permanent unlocking solution.