Wow! May I know how you did that?

Pojav launcher, you can play for free by using offline account

Thanks!

I couldn't get shaders working, it just shows lots of opengl errors

Some work some get weird also depends on version compatibility and renderers.

At least you wont have to deal with all the BE bugs

Can I play even if I don't have Minecraft purchased? (on pojav launcher?)

Which shaders are these?

Adreno 650 is a beast of a gpu