should i flash "BL - CP - CSC" or only the AP file in odin?

[AC Question]

1- hi guys , should i flash "BL - CP - CSC" or only the AP file ?
2- what if i only flash AP file ?
3- what is the purpose of changing the CSC to another region ? does that means that i will receive the update via ota at the same time with the flashed csc region ?
4- can i only flash a new csc or i halve to flash a whole new rom to make it work ?
5 thank you a lot

 

[VigneshB]

1,2. If you have the MD5 file, you just need to use the AP button. The stock firmware from Samsung contains all the recovery, kernel and ROM as a single MD5 file. http://forums.androidcentral.com/am...w-flash-stock-rom-via-odin-new-interface.html
3. CSC makes sure that your device works in compliance to the regulations of your country and/or your network provider.
4. You need to have the firmware pertaining to that specific CSC.
http://forums.androidcentral.com/sa...5-guide-how-change-csc-samsung-galaxy-s5.html