SD card reader initialised but not reading card

Hardware
1

I have a DF Robot LCD screen with SD Card reader attached to an Adafruit ESP32-S3 board. The screen is working well, now I'm trying to get the card reader functioning.
The sketch is written in Arduino IDE v2.2.1 on a Windows 11 PC.

The SD card reader starts fine, but will not read or write files. I have tried three cards, all formatted in the SD Card Formatter program - I also tried using the windows format tool.

The code is

#include <SPI.h>
#include <SD.h>

#define TFT_SD  10

void setup() {
 Serial.begin(9600);
 if (!SD.begin(TFT_SD)){
   Serial.println("Card not present or device not working");
   while (true);
 }
 Serial.println("Card found!");
}

void loop() {
 File testFile = SD.open("DataTest.txt",FILE_WRITE);
 if(testFile){
   testFile.close();
   Serial.println("File created!");
 }
 else{
   Serial.println("File not created...");
 }
 testFile = SD.open("DataTest.txt",FILE_WRITE);
 if(testFile){
   testFile.println("File text goes here.");
   testFile.close();
   Serial.println("File successfully reopened and written to!");
 }
 else{
   Serial.println("Problem opening the test file...");
 }
 while(true);
}

The Serial Monitor output is :
Card found!
File not created...
Problem opening the test file...

Any help would be appreciated!

2

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