ciko2k:
Hi David.. thanks a lot for your replay. Now i don't have an UNO, but i used a MEGA2560, and an ESP32 (with my pin definition) with the LCD_ID_readreg.
both board giveme the same resutl.reg(0x00D3) 00 00 93 02 ILI9341, ILI9488
The wiring was correct for LCD_ID_readreg i.e. as specified by Bodmer (and me)
So you simply run graphictest_kbv withou changing the wiring. Observe the ID reported on the Serial Terminal.
If it does not say 0x9302, SLOW down the clock frequency in the IDE.
As I have said repeatedly. Buy a proper TTGO R32 board from Ebay. Do the hardware mod as shown by Bodmer. Everything should work out of the box i.e. just like running the 0x9302 on a Uno, Mega, Zero, Due, Leonardo, ...
David.