Unable to remove Samsung account on second hand device

[LuckyLyons64k]

Just got this Samsung galaxy phone at a yard sale but can't remove the old owners Samsung account from the phone.  Old owner can't be reached so how can I remove his account and replace it with mine  ??  Please help 

[LenaCheney]

Can't you just do a factory reset?

[LuckyLyons64k]

Already transferred my accounts before I realized his Samsung account. No memory card yet to transfer info to so I can factory reset

[Dedication261 · Accepted solution]

Don't factory reset. You need them to sign out of the account for you. The other option is to reflash the device with Odin using the stock firmware.

[ArtDesk]

Factory reset