@reedmichael9090 I just want to say I am sorry for your loss. You can’t erase the device without triggering an iCloud lock which renders the device completely unusable. You could attempt using the Apple iCloud unlock service (https://al-support.apple.com/#/kbase) but it isn’t a 100% chance they unlock it. For receipt (unless you have the original receipt) I have had luck with random invoices for eBay, Amazon, etc but your luck could vary.
1 
Does your father use the same Apple ID on a different Apple device?
Duck 의
No.... unfortunately he passed away that's how I got this phone....all I'm trying to do now is use it for a trade in of some kind.
M. Reed 의
@reedmichael9090 I just want to say I am sorry for your loss. You can’t erase the device without triggering an iCloud lock which renders the device completely unusable. You could attempt using the Apple iCloud unlock service (https://al-support.apple.com/#/kbase) but it isn’t a 100% chance they unlock it. For receipt (unless you have the original receipt) I have had luck with random invoices for eBay, Amazon, etc but your luck could vary.
Duck 의