I am trying to get my built-in SD card reader to work on a Sparkfun ESP32-S3 Thing Plus card. I ran the SD_test example and get “Card Mount Failed”. Yes, I am using FAT32 formatted cards. I am using the Arduino profile for that specific card. Should I return this card as defective?
I think you might have it in bootloader mode? I don’t see that error as a part of the example code Arduino Examples - SparkFun Thing Plus - ESP32-S3