Phone locked
I have a phone that I let the guys in the field use, the guy that I let use it put his iCloud password on it and now its locked. Please help
iPhone 6 Plus, iOS 9.3
You need to contact this guy and ask him to remove this iPhone from his list of devices. Otherwise, your iPhone will be a useless brick.
Find My iPhone Activation Lock: Removing a device from a previous owner’s account - Apple Support