Is it possible to decrypt the phone?

[Cakefish]

Can someone please check whether you can disable device encryption on the S7s please?

This is how you should be able to do it if it's possible; How to disable encryption in Android Lollipop | Android Central

 

[xocomaox]

I assumed it came from the factory unencrypted?

 

[vr002sh]

I have the T-Mobile variant. There is an option to encrypt the SD card (assume it's un-encrypted by default). But no option to decrypt internal storage. With Marshmallow, the default was to encrypt internal storage, some manufactures do give an option to decrypt, but looks like Sammy did not.