Materials transparent on older Android device

Hi all

I’m working on this mobile game, and I’m testing it on my Nexus 5 and Nexus 7 (2012). Everything’s completely fine on Nexus 5, but on Nexus 7 all materials are semitransparent, or have something like an “add” blending mode on them. Not sure what to make of it I googled and couldn’t find the answer. I think this started when I upgraded to Unity 5. I keep thinking it has to do something with rendering path or general quality settings (Since Nexus 7 is quite older device) but no matter what I try, I get the same result. Anyone with an idea what this could be? Here are screenshots from Nexus 7 and Nexus 5:

Useful info: just noticed that it’s probably a blob light projector issue (on the torch), since materials are only transparent within it’s reach, and not further away. Still, no idea how to fix it.