If you are also looking for a flip case (Non-Korean version) with a cut out for the Notification LED, it'll be pretty difficult to find one.
Sorry for the negative insight on this, but best of luck to you finding a good flip case ^_^.
Something like this????
Anyway you can't remove the back cover of the G2, so it CANNOT be like the S4, where you can remove the back. You can only use a case that will cover the back of your G2 while also having a flip that covers the front.
Sent from my LG-D802 using xda app-developers app