Hi, I downloaded this ROM [Stock Official Firmwares] I9300XXELLC (4.1.2) - Spain (PHE) [11-01-12] I9300XXELLC Base Firmware: I9300XXELLC (4.1.2) Region: Europe Country: Spain Carrier: Unbranded Build Date: 28 December 2012 Modem: XXELLA CSC: PHEELL3 Change List: 764725 I succesfully installed this ROM with Odin in my previously rooted Galaxy S3 (international). Everything is fine but the question is: Would I be able to flash this ROM using Odin without rooting my phone? What happen If I dont change the CSC to the one of my region? By the way this ROM works great. Thanks.