You have to put in the SIM-card and plug it into the PC. Then just slide the activation bar.
ITS PREPOSTEROUS!
Yes you need to activate it using Itunes, otherwise you wont be able to use it you will only see emergency calls only on the screen or a logo for USB cable pointing to an itunes logo. For the step by step procedure on how to activate iphone, just go the link http://nice-to-know-about-iphone.blogspot.com and look for the topic "Activating an Iphone"
If your iPhone is stuck on the rebooting logo, you can try these ways: Force restart your iPhone; Use iTunes to restore your iPhone; Use Joyoshare UltFix to fix iPhone without data loss;
Plug it into your computer. It will start to charge, then turn on within a couple of minutes.
that means it needs to be charged or blogged into itunes and in an instant it'll go away
Soft reset your iPhone (turn off and turn back on) If that doesnt work try hard reseting you iPhone (hold down sleep/wake button and home button until the apple logo apears- don't worry it doesn't affect your apps/music) If that doesn't work restart your computer. If that doesn't work then download the latest version of itunes.
iTunes
Secrete.
Guess the Logo
After the logo appears, your IPhone should come on automatically.(: It takes about two minutes. Don't push buttons though, or else your IPhone will freeze up.(:
You cannot change it, it is it's logo
It is a common glitch. It is usually solved by performing a hard reset which is done by holding down the power button and the home button until the apple logo shows.