I have a sim with a pin code and have saved the pin to secure storage with “cm sim storepin pin”
On boot the sim status is “inserted and locked (LE_SIM_INSERTED)”.
The documentation suggests that the pin is automatically read from secure storage on boot.
That is not happening here, the sim remains locked until unlocked manually.
I have read that the secure storage starts a timer which counts up to 300 before completing a backup, but I have tried leaving this for over 10 minutes after issuing “cm sim storepin pin” but it never manages to unlock automatically.