Originally Posted by Trevon75
I have read through multiple posts but I am still slightly confused. So I have a Samsung Galaxy S3 running VRUCNC1. I have read that it is unrootable and that using ODIN to downgrade is the only option, but I have also read that downgrading will brick your phone. Could someone assist me with this?
Once your phone has taken either 4.3 OTA (VRUCML1 or VRUCNC1), downgrading to 4.1.2 will result in a hard brick. You can only switch between VRUMCL1 and VRUCNC1, the phone will essentially not boot on any other firmware. Downgrade to VRUCML1 then root via Saferoot. It is safe to do this.
Users with unlocked bootloaders (aka people who did not take either 4.3 OTA) can switch to ICS or JB 4.1.2 via Odin without fail or issue. We can do so, unless somehow we end up taking either 4.3 ota.
[VZW] Samsung Galaxy SIII