I have GSM/GPRS/GNSS/Bluetooth HAT for Raspberry Pi with SIM868 I want to communicate with sim card over APDU command with AT+CSIM command. The datasheet says that this at command is supported by sim868. I tried to send the following AT commands:
AT+CSIM=10,"0070000000" //Globalplatform manage channel command
+CME ERROR: unknown
AT+CSIM=26,"00A4040008A000000003000000" //Globalplatform select applet command
+CME ERROR: unknown
I have tested these commands via a card reader with the same sim card and it works, but via at command, it doesn’t.
How can I fix it?