Yes, our linux board is able to send APDUs to the UICC
YES!! AT+CSIM commands are working fine. Our linux board is able to send APDUS to the simcard with success. Below commands to read standard file ICC. Until here is the work I can publish. Complex communications with javacard applets falls inside the intelectual property of my company and I cannot publish. This will be published in internal company confluence pages. We have also been able to send text sms, but that is easy peasy :)