Is there any possible way to get past the activation lock on an iPhone 5?

I bought an iPhone from my friends friend. Well he failed to tell me that I needed his username or password to actually use the phone, and I have no contact with this person. Is there any way to get past this or am I out of 80$?

No you can't truly. I have tried.

IOS 7 security is very tight in regards to this. For $80 it sounds way to fishy as well. Usually that generation iPhone could sell easily for no less than $300. He may have found it or stolen it and just sold it to you for a quick buck.

For $80 he was certainly not the owner of the phone, your lucky your only out $80. Don't buy obviously stolen items again.

Bring the phone to an Apple store then tell them your sad story.

Pay your friend 40 of that 80 to have him get his friend to give you the credentials. Wait? They're not really friends and it's a stolen phone? Now it's an $80 paperweight. No way around it that I've ever seen that actually works or that won't cost you some more coin. Have fun with these. Best luck.

Nope. Impossible. Why not get your friend to contact his friend about getting back your money?

You won't get past it, all these people posting old video from youtube don't realize it won't work. If they are updated on 7 with the latest then you are stuck, get the person who owned it wipe it for you.