First-time listener, first-time caller.
My Galaxy SIII GT-I9305 originates from Hong Kong.
When I bought it (used, on Kijiji) it was running 4.1.2
When 4.3 finally became available for this model a couple of weeks ago I bit the bullet and installed it using Kies.
I knew 4.3 had issues but I went ahead anyway because I live dangerously, dontcha know.
Today I decided I wanted root so, instead of taking my time and reading the sage advice of kind people like you I jumped right in with ODIN and Chainfire using Instructions I found on these forums and elsewhere.
The rooting procedure seemed to go off without a hitch. Then the phone booted up. Then this started happening:
Selecting "Update" brings me to this:
And anything I do that requires root gives me this:
I tried re-rooting using a different version of ODIN to no avail.
Posters in other threads suggested re-installing SuperSU.
I tried executing superuser.apk using ES File Explorer and got this:
Incidentally, in Download Mode I can see that I've triggerd the Knox Void Warranty Flag, not that I have a warranty.
At this point I just want to get my phone to work as it did with stock 4.3.
What's my quickest route there?