Free Flash Drivers

Hi, and Im sorry if there is already solution but I wanted to make new thread so more people see this...Cause I dont want to do more damage...I have galaxy s4 GT-I9505 with android 4.3...Firstly I wanted android 6.0 so I installed CWM app from Google play to make backup but it cannot make it cause my phone wasnt rooted (this was all in app while phone worked normally)...So, I wanted to root it following this thread: http://ift.tt/1hmg0Hw ...But, Odin showed Fails error (I attached error in post). I exited it and disconnected the phone...Now phone showing firmware issue, and I can enter into download mode and Odin recognizes it (version odin 3.10.7). I just want phone to work again with stock ROM, I dont want any new firmware anymore :( Can someone suggest what to do step by step? Again, ODIN fail error for root try is attached. Please help me. Thank you very much in advance...

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