I have no problem provisioning profiles using +CSIM or +CCHO-+CGLA commands (which allow to send APDU commands to the UICC/eUICC), however I have a device that offers only AT+CRSM and AT^SXSM commands. I know that this command could be used to read/modify UICC file system, but is there any advice on how to use it to deploy eSIM profile? Of course rewriting the AT commands won’t be straight forward, but I am wondering if that’s possible and if anyone has any idea regarding this. Thanks.
I’m sorry to say, but you appear to be donig the impossible. As can be seen from a first glance on TS 27.007, AT+CRSM provides super high level access to some SIM card contents, and not transparent APDU/TPDU-level access. As such, you can never implement a LPA on top of it.