You can verify your current CSC by connecting to Kies (main page, software Information). I you'll see TWO - you can install this ROM choosing CSC TWO, without wipe data ticked. But if you have VIP (VIPNET), CRO (T-Mobile) or any other CSC - you can still install this ROM using CSC TWO, but wipe data is highly recommended
TWO is "the cleanest" CSC in Croatia (originally no CSC bloatware or additional TELE2 carrier apps) - I recommend to use it in Croatia, independently of carrier operator you are using[/QUOTE]
I checked my CSC in Kies as adviced and this is info:
Current firmware version:
Phone: NE2 (SEE)
Which code I must choose from your ROM?
LG Optimus 2x / ROM: Jelly Cream 1.4 /Baseband version: V30A / Kernel: Kowalski M1 / KoB 0.7
Samsung Galaxy S5 G900F / Stock ROM G900FXX1ANE2/ Towelroot