Q: activation lock

I'm afraid that unless you can contact the previous owner you're out of luck.

Read through this article to find if your device has an activation lock.

http://www.macworld.com/article/2048739/get-to-know-ios-7-activation-lock.html

If this is what you have - the news is bad:

http://www.cultofmac.com/246755/why-ios-7s-activation-lock-is-a-disaster-waiting -to-happen/

hi kaiti  i need help my iphon6 is lock apple id need im too you what is can

You might want to consider starting a new discussion. Since this one is a couple of years old, less people are likely to look at it. A new post would be much more visible. You can link to this one.