Before flashing you should know some basic version information of your current ROM and to which ROM you are going to. Is it new update or just moving from country to another country?
The easiest way to get your phone information.
Firmware version: *#1234#
S/W version: *#1111#
H/W version: *#2222#
Now that you have typed the firmware version code and that you are on the screen, you will get 3 different pieces of information. As an example, my phone shows (I had flash Hong Kong version):
Build Info: Thu Nov 3 16:31:33 KST 2011
PDA is the operating system with its programs and settings included.
PHONE is the modem firmware file, parts of which are required to access the hardware.
CSC (for consumer software customisation) are the regional settings applied which may install additional programs as well as provider-specific settings (APN).
PDA AND PHONE CODE MEANING
What does N7000XXKK1 means?
N7000(=model) XX(=Region) K(=Year) K(=Month) A(=Revision)
N7000= Galaxy Note
SAMSUNG REGION CODES
BD Cyprus, Greece
DX Indonesia, Malaysia, Philippines, Singapore, Vietnam
DZ Malaysia, Singapore
JA South Africa
JC Algeria, Morocco, Nigeria, South Africa, Tunisia
JV Algeria, Egypt, Iran, Iraq, Kuwait, Morocco, Nigeria, Oman, Pakistan, Saudi Arabia, South Africa, Syria, Tunisia, Turkey
XA Austria, France, Germany, Italy, Netherlands, Switzerland, United Kingdom
XB Denmark, Norway, Sweden
XC Portugal, Spain
XD Croatia, Czech, Hungary, Slovakia
XE Bulgaria, Estonia, Kazakhstan, Latvia, Lithuania, Russia, Ukraine
XF Bulgaria, Croatia, Romania
XW France, Germany, Italy, Netherlands, Portugal, Spain, Turkey, United Kingdom
XX Austria, Belgium, France, Germany, Hungary, Italy, Spain, United Kingdom
ZC China, Hong Kong
ZH Hong Kong
1 = 1
2 = 2
3 = 3
A = 10
B = 11
C = 12
That not difficult to understand your phone version. The code quite simple but flashing between region quite confusing. My advice is just look at the Android version.. like moving from Android 2.3.5 to Android 2.3.6. There should be enhancement or bug fixes in the new Android version.