@Crosman
You can only jump between existing scripts inside Firmware...
You can look what you can choose by ADB for instance...
forum.xda-developers.com
In US Firmware you should find folders with:
This means you can choose between XAA OR VZW OR ATT...
You can not change to DBT as DBT is not isnode US Firmware...
If you use ADB... then IMHO more clear...
About safe....
OWN RISK!
EVER your OWN RISK!
Because I am not Samsung.
Best Regards
You can only jump between existing scripts inside Firmware...
You can look what you can choose by ADB for instance...

Firmware and Combination Firmware and FOTA Delta and CSC change and...
Looks like it could be harder since Tizen... A Stock Firmware for netOdin/Odin not available yet... B Combination Firmware not available yet C FOTA Delta File for study I have...

In US Firmware you should find folders with:
Code:
ATT
VZW
XAA
This means you can choose between XAA OR VZW OR ATT...
You can not change to DBT as DBT is not isnode US Firmware...
If you use ADB... then IMHO more clear...
About safe....
OWN RISK!
EVER your OWN RISK!
Because I am not Samsung.
Best Regards