ok so, if you guys have seen my previous posts, this is what happened the first couple of days of getting my phone and FREAKING that I had screwed it up. Now since i've had a bit more experience i'm not too worried.
The situation last time and now was that after installing a rom, I would want to change it back by restoring a backup created in twrp. Every time I would try to do this though it would install and be successful, but then when i reboot the phone it stays on the "samsung galaxy s4" screen.
so, do I have to have 4.3 installed already for the backup to work? and is there such thing as a 4.3 stock ROM instead of having to flash it with odin everytime?