Could you try my library:
There are quite a lot of different controllers in these LCDs and I am trying to make as many as possible work with one single library. If my library doesn't work for that display, then either the display is damaged (possible), or you have found yet another variant of the display and I will try to help you adapt the driver to make it work (also possible).
If you choose the latest version from the downloads page (3.0).