With this fix I can report that everything works!
So in short:
- AT+CGLA=? isn’t supported (Please fix your documentation)
- SIMLPA doesn’t allow AT+CCHO to work
- Disabling SIMLPA requires AT!ENTERCND=“A710” followed by AT!CUSTOM=“SIMLPA”,0
- After that AT+CCHO and AT+CGLA= (but not AT+CGLA=?) works
I can confirm that with this instructions and some hacking into lpac to make it not check for AT+CGLA=? I can list the profiles in the eSIM I use