Hi Enrico,

 > ​CFUN=4 always turns SIM off, even in new firmware.

I'm pretty sure we requested that they change this.  But its been a 
while and I did not follow up whether this change made it into the 
official firmware.

> The reason for this fix is because sometimes ofono is started when the
> modem is already attached to the system, or it is in an inconsistent state.

oFono powers down the modem when exiting.  So this should not be a 
problem in normal circumstances.

Regards,
-Denis