Sending commands

le_sim_SendCommand() supports sending commands to the SIM. The p1, p2, p3 parameters usage is described as follows:

Command \ Parameters P1 P2 P3
LE_SIM_READ_RECORD Record number to read Unused Unused
LE_SIM_READ_BINARY Offset to the first byte to read Unused Unused
LE_SIM_UPDATE_RECORD Record number to write Unused Unused
LE_SIM_UPDATE_BINARY Offset to the first byte to write Unused Unused
  • path parameter contains the path of the elementary file from the master file in hexadecimal (e.g. "3F007FFF", "3F007F20"). The path is mandatory for all commands.

Select Card

le_sim_SelectCard() function is used to select the SIM identifier. Additionally, any Legato SIM API with a SIM card identifier passed in parameter, selects that SIM identifier. The le_sim_Id_t parameters supported by these APIs depend on the platform.

For WP76xx, WP77xx, AR759x and AR758x, only LE_SIM_EXTERNAL_SLOT_1 and LE_SIM_REMOTE types are supported.

For AR755x, only LE_SIM_EXTERNAL_SLOT_1 and LE_SIM_EMBEDDED types are supported.

For other products, only LE_SIM_EXTERNAL_SLOT_1 and LE_SIM_EXTERNAL_SLOT_2 types are supported.

For the support of LE_SIM_EMBEDDED on AR755x platform, please refer to your platform documentation for further details.
Switching between local and remote SIM card requires a reset to take effect, please refer to your platform documentation for further details.


Your platform might need a reboot to detect a SIM card insertion or removal.


As indicated in the mangOH™ User Guide:

SIM slot Detection
LE_SIM_EXTERNAL_SLOT_1 (Mini-SIM) Hot-swappable
LE_SIM_EXTERNAL_SLOT_2 (Micro-SIM)Not hot-swappable

Other platforms

Refer to your platform documentation.