Initial Setup of nrf9160

Dear Team,

could you please share some info on the Content of the nRF9160 Chip when it is shipped from Distributor? or a Sample?

What is the Content of it? is it empty or it has some initial Content?

What is the "Setup" or "init" sequence required in order to start to use it? Like: modem Firmware... e tc.

Also, is there any AT-cmd sequence to test, that you will suggest? Apart from AT+CGMR...

thank you