Today I decised to change my ROM. I installed ported to i9305 LTE ArchiDroid v2 (I had done before full wipe and backups). It was my first "Kitkat". I broken something at interface (there were a lot of otpions to choose) so I decided to "make backup" from mobile, not recovery (I had CWM). My S3 had restarted and I saw "laoding screen and loading" of ArchiDroid and every times it went to CWM. I wanted to make backup and... all of my backups were deleted. So I put The Galaxy Project on my SD card and installed it. And my phone didn't start.
It stuck in screen "Samsung Galaxy S3 i9305".
After X times I got access into download mode. I wanted to install clear 4.3 but Odin made "FAIL".
Now I have on boot (normal, CWM and download mode) this: "Firmware upgrade encountered an issue, Please select recovery mode in Kie and & again."
I tried to "repair it" via Kies but it needs working recovery mode... But I haven't :/
It has only 1 month but with Knox=1. If'll give it at warranty" can they check a flag or custom rom, installed X times or something? But I prefer to repair it in my phone.
How can I repair my phone? Please, help me.