Hi and thanks. Yes A4 is marked LCD_RST. There is also a dead-short between A4 and SDA and A5 and SCL so that is the problem. It appears that to use this TFT with a I2C device the UNO board is not suitable. However, I may have found the answer elsewhere on this forum that modifies the TFT to make it work by snipping the LCD_RST and pulling it up with a resistor. This I will try. 3.5" TFT LCD ILI9486 problems