Quote Originally Posted by hacklerjason View Post
If I bought a new ecu over the counter to have on hand just in case, can efilive handle the task of flashing it up out of the box in case I brick my first one?
No, there is portions of the ECM's that cannot be read out to then be used to initialise an out of the box ECM, it requires TIS.
Then it also requires several items to be initialised with a TechII or similar on the vehicle itself.

Quote Originally Posted by hacklerjason View Post
I'm not scared at all I just want to know more about the capabilities before I go and start experimenting
I'm trying to save you some time and money, it has already been attempted (non US OS in to a new US ECM using TIS), it corrupted it and could not be recovered.

Quote Originally Posted by hacklerjason View Post
When the OS and calibrations are read out, can that read out be used to flash a blank controller into service?
No, see first response.