I found a iphone 6 and it still has a icloud on it?

So i found a iphone 6 i restored and update d it but its not for my company so i put a friends at&t card in and the the service thing in the corner poped right up then i proceeded to set it up then it said please sign into icloud but my icloud didn't work. How do you remove old icloud. Does anyone know where i can take the phone to get it done.

Wait, so you found a iPhone 6? By found, did you mean you found it somewhere and just took it? Or did you mean you found a iPhone 6 on Craigslist and bought it?

Because if you just found it in public somewhere, then you essentially stole it by taking it, updating it, and using it instead of giving it to the police station.

But if you found it on Craigslist and bought it, assuming it's not stolen, okay.

You could take it to the police to report it as lost.

You can't remove the iCloud Activation Lock, its part of an anti-theft measure.