https://robotdyn.com/pub/media/0G-00005215==UNO+WiFi-R3-AT328-ESP8266-CH340G/DOCS/PINOUT==0G-00005215==UNO+WiFi-R3-AT328-ESP8266-CH340G.pdf
This not going well. Pins necessary for SPI are not present on this connector.
Not much left
Ok, set the switches for upload to UNO, and try a loop-back test.
https://forum.arduino.cc/t/loop-back-test-instructions/73046