iOS: r.MobileContentScaleFactor not working

I’ve been trying to set mobile content scale factor under windows > developer tools > device profiles.
I have set iphone 6 mobile content scale factor to 0.5 just to see if everything scale down but the scale remains the same as before when the mobile content scale factor is 1.0. Any ideas? Is there some place I have to activate it?

P.S. using 4.8.1

It seems I have to press the save as default button for it to actually work after the 1st time or the iPhone won’t register the update.

After spending an incredible amount of time modifying Device Profile settings, and wondering why my changes weren’t taking effect and what I was doing wrong, I can confirm that this was also the issue for me :person_facepalming: