Samsung Galaxy S6 Edge SM-G925F Back to Lollipop ROM

[ccypruss000]

Good morning I have the Samsung Galaxy S6 Edge which I want to pass the European Lollipop ROM over. Now has the European Nougat. Should I first unlock OEM and USB stick errors from programming options? Should I edit some files?
ROM Lollipop Europe: 5.1.1 https://www.sammobile.com/firmwares/galaxy-s6-edge/SM-G925F/EUR/download/G925FXXU3COI9/57947/
5.0.2 https://www.sammobile.com/firmwares/galaxy-s6-edge/SM-G925F/EUR/download/G925FXXU1AOE3/47454/
Please Help !!!!

 

[Rukbat]

You don't edit or unlock anything. See [Samsung] How to flash Stock ROM via ODIN for instructions.