Originally Posted by Ghack
I'm not understanding you what do you wanna say with unlisted?
Instagram's programming requires that you need an OpenGL ES capable chip for formatting to work. This means a graphics chip. Otherwise it would crash. Ever tried running a high end game on a netbook without a graphics chip? Kind of like that.
On GSMArena's database, and other places I look, your phone model does not say it has a graphics chip. So basically, its not listed on databases if your phone has a graphics chip or not. But if Instagram works, it probably has one.