Hi Howard,
Sorry for the delayed reply, hopefully others have already solved your problem.
I am using Arduino IDE version 1.8.5. I have not tried more recent versions. Under the IDE ¡°Tools¡± tab I have the following settings.
Board: ¡°Arduino Nano¡±
Processor: ¡°ATmega328P¡±
On the Nextion Display, perhaps try reformatting the SD card and then copy the .tft file as required. When I originally programmed the discovery display, I used the Nextion Editor Ver.1.63.3 via a USB serial adapter connected to the display. I did also check that the .tft method using an SD card which also worked fine.
73, Dave
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