EC20 SD card error 419

IoT Modules LTE Standard Module
1

Hi, I am using an EC20 modem with an SD card and want to transfer data to an SD card from MCU using UART but I am getting error +CME ERROR: 419(fail to get disk info).

2

May I ask what command you use to report the error?

3

Thanks a lot my query is solved.

4

what exactly was the error and how did you solve it, it may help me too