Hallo team.
I bought two displays from Adafruit in last six years.That first one working correctly up to now.So I decided to buy exactly same (8-bit mode) one in case of any issues with old one.When I recieved Your second 2.8" TFT LCD with Touchscreen Breakout Board w/MicroSD Socket (ILI9341) [ID:1770] = $29.95 I didnt have time to try it.Now I can see this.I followed all instructions on your web site learn.adafruit but I still have white screen on new dispaly.If I put new display in socket for old one it has also white screen.If I have all wirring from your web site with old display everything graphictest works fine.So that meens wirring and Arduino uno is fine with same library for old display but for a new one not.
Thanks for any help.Patrik