Q: I can buy an iPhone 5 from users and it has been icloud, now I can not find it's owner, so anyone show me how to open it not, sir, thank you

You will have to find the owner it is locked with, have them log into iCloud and remove Find My iPhone from the device. If you cannot do this then return it to where you purchased it and get your money back.

There is nothing you can do then. You have a brick.

The phone has an Activation Lock on it, and there is no way to get around it:

http://support.apple.com/kb/ht5818

Sorry,

GB

Sorry - I don't understand your question?

GB

I don't know what "have a receiver open icloud" means....

Sorry,

GB

Sorry, but your post still makes no sense in English. Try posting in your native language, unless this Apple support article addresses your question:

http://support.apple.com/kb/HT4933

Regards.

Again, your post makes no sense in English. Try posting in your native language.