Start by going to your settings menu. From there select network connections and then tap on mobile network. You can then change the LTE setting to 3G in the open network technology screen.

Yes it does! It is your basic touch screen zoom method, just pinch your fingers against the screen.

Yes it is possible. Begin by going to your contacts menu. Once that is open swipe down until you reach yours settings option. From there you can choose to turn off the accounts you no longer want to have connected to your phone.

Yes, start by opening your contacts menu. Select the contact you want to add (their contact information should pop up on the screen). Press and hold down on their information. A star icon should appear near their name. Once it does, click it, that contact will now appear at the top of your screen every time you open your phone application in your “calls” section.