OK. Your display has this description:
2pcs 1.3 inch IPS HD TFT ST7789 Drive IC 240*240 Full Color LCD Display Module
Features:
Size: 1.3 inch
Active Area: 23.423.4 mm
Module Size: 26.1629.22 mm
Resolution: 240*240 (Display direction can be adjusted, horizontal screen and vertical screen are OK)
Drive IC: ST7789
Color: Full Color
Viewing Direction: Full viewing angle
Interface: 4-Wire SPI Interface
PIN NO.: 12Pin
Voltage: 3.3V
Working Temp.: -20 ~ 70 degreePin Descriptions:
PIN No Symbol Description
1 GND Soil
2 VDC Power 3.3 V
3 SCL Series watch pin
4 SDA Data Entry Series
5 RES LCM Reset pin
This pin is resetting the signal input. When the pin is low, the initialization of the chip is
Executed! Keep this plug high during normal operation.
6 DC Data / Control
7 BLK Control pin backgroundPacket Contains:
2pc x 1.3 inch IPS HD TFT ST7789 Drive Display Module
and this is your schematic example:
The Nano Every is 5 Volts. How have you solved the 3.3 V mismatch ?