<![CDATA[T-sim7600E don't recognize SD card]]>Hello, I try to read SD files on the T-SIM7600E, but I have only "Card Mount Failed".
in my config file I have
#include "FS.h"
#include "SD.h"
#include "SPI.h"
#define SD_MISO 2
#define SD_MOSI 15
#define SD_SCLK 14
#define SD_CS 13

and in my setup

SPI.begin(SD_SCLK, SD_MISO, SD_MOSI, SD_CS);

if(!SD.begin(SD_CS)){
Serial.println("Card Mount Failed");
return;
}
uint8_t cardType = SD.cardType();

if(cardType == CARD_NONE){
    Serial.println("No SD card attached");
    return;
}

When I run the sketch it stops at "Card mount failed"

I have tested with several SD card with a Fat32 format.
Any idea about the problem
Regards
Papbo

]]>https://www.community.lilygo.cc/topic/29/t-sim7600e-don-t-recognize-sd-cardRSS for NodeSun, 07 Jun 2026 23:19:28 GMTMon, 20 Dec 2021 15:58:57 GMT60<![CDATA[Reply to T-sim7600E don't recognize SD card on Wed, 25 May 2022 01:08:20 GMT]]>@papbo What is your current ESP32 version? Try upgrading?

]]>https://www.community.lilygo.cc/post/160https://www.community.lilygo.cc/post/160Wed, 25 May 2022 01:08:20 GMT<![CDATA[Reply to T-sim7600E don't recognize SD card on Wed, 22 Dec 2021 17:31:27 GMT]]>@caz Of course all is ok regarding UART communication...I canuse the GPS mode, the GPRS mode, wifi...AT commands , send and receive SMS..but unable to read and write to the SD card
Regards
Papbo

]]>https://www.community.lilygo.cc/post/81https://www.community.lilygo.cc/post/81Wed, 22 Dec 2021 17:31:27 GMT<![CDATA[Reply to T-sim7600E don't recognize SD card on Wed, 22 Dec 2021 17:14:55 GMT]]>@papbo Does you code have serial port initilization code?

// Set console baud rate
SerialMon.begin(115200);
delay(10);

// Set GSM module baud rate
SerialAT.begin(UART_BAUD, SERIAL_8N1, MODEM_RX, MODEM_TX);

]]>https://www.community.lilygo.cc/post/80https://www.community.lilygo.cc/post/80Wed, 22 Dec 2021 17:14:55 GMT<![CDATA[Reply to T-sim7600E don't recognize SD card on Wed, 22 Dec 2021 16:24:35 GMT]]>@caz It is exactly what I have in my sketch (look at my first post)
Thanks
Rehards
Papbo

]]>https://www.community.lilygo.cc/post/79https://www.community.lilygo.cc/post/79Wed, 22 Dec 2021 16:24:35 GMT<![CDATA[Reply to T-sim7600E don't recognize SD card on Wed, 22 Dec 2021 16:02:43 GMT]]>@papbo AllFunctions.ino has following code.

//Initialize SDCard
SPI.begin(SD_SCLK, SD_MISO, SD_MOSI, SD_CS);
if (!SD.begin(SD_CS)) {
Serial.println("SDCard MOUNT FAIL");
} else {
uint32_t cardSize = SD.cardSize() / (1024 * 1024);
String str = "SDCard Size: " + String(cardSize) + "MB";
Serial.println(str);
}

]]>https://www.community.lilygo.cc/post/78https://www.community.lilygo.cc/post/78Wed, 22 Dec 2021 16:02:43 GMT<![CDATA[Reply to T-sim7600E don't recognize SD card on Wed, 22 Dec 2021 15:59:55 GMT]]>@caz hello, do you have a sketch to test the SD card on the SIM7600...other than the examples (they are not working here)
Regards
Papbo

]]>https://www.community.lilygo.cc/post/77https://www.community.lilygo.cc/post/77Wed, 22 Dec 2021 15:59:55 GMT<![CDATA[Reply to T-sim7600E don't recognize SD card on Wed, 22 Dec 2021 14:52:56 GMT]]>@caz Yes The SD is on the right side..

]]>https://www.community.lilygo.cc/post/76https://www.community.lilygo.cc/post/76Wed, 22 Dec 2021 14:52:56 GMT<![CDATA[Reply to T-sim7600E don't recognize SD card on Wed, 22 Dec 2021 14:36:19 GMT]]>@papbo How do you attache the SD? Does its contact side face to the board? Its connector is not fail safe.

]]>https://www.community.lilygo.cc/post/75https://www.community.lilygo.cc/post/75Wed, 22 Dec 2021 14:36:19 GMT<![CDATA[Reply to T-sim7600E don't recognize SD card on Wed, 22 Dec 2021 13:54:27 GMT]]>@caz Hello,
Thanks for your reply.
Unfortunately I have tested my board with all the different exemples from the Arduino library and the result are always the same "SD card mount fail".
I have formated the various SD card on Windows 10 and MAC OS as FAt32 with the same result.
Regards
Papbo

]]>https://www.community.lilygo.cc/post/74https://www.community.lilygo.cc/post/74Wed, 22 Dec 2021 13:54:27 GMT<![CDATA[Reply to T-sim7600E don't recognize SD card on Mon, 20 Dec 2021 17:38:09 GMT]]>I successfully read SD card on my sim7600g, I mean I have "SDCard Size: 3789MB" when I run examples/Arduino_TinyGSM/AllFunctions/AllFunctions.ino. The SD card is formatted as FAT32 on Windows 10, no partition. I suggest to run one of examples such as AllFunctions.ino first.

]]>https://www.community.lilygo.cc/post/68https://www.community.lilygo.cc/post/68Mon, 20 Dec 2021 17:38:09 GMT