First off. Is it an ILI9331 ? What does graphictest_kbv say ? What did the Serial Terminal say ?
I do not currently support a 9331 but do have 9320, 9325, 9335. What did you use with tft.begin() ?
Yes, it should be easy to add support for the 9331.
- could you confirm whether the PORTRAIT, LANDSCAPE, PORTRAIT_REV, LANDSCAPE_REV are correct.
- does Vertical scroll work?
- does Software scroll work?
David.