As has been the case with Android 5.1.1 updates from Samsung, you need to have custom kernel that supports root access, to be to root your device on 5.1.1.

Same applies to Android 5.1.1 update for Canada Galaxy S5, as it did to Galaxy S6 and S6 Edge, and Note 4 and Note 5.

Don’t worry though, we have our eyes set on this, and once a custom kernel is available for your Canada Galaxy S5, we will share that with you for sure, along with a guide on how to root your Galaxy S5 using SuperSU and custom kernel.

Till then, it’s a wait game.