[Q] s4 nj4 stock freezes, no sound, reboots and sorrow topic

My s4 (at&t i337) was rooted (started on ni1) then soft bricked, I used odin 3.09 to unbrick it (ended on baseband nb1). I started to root it once again but forgot to flash the nc1 kernal before using towel root thus my issues began. My s4 freezes half the time at the lock screen/ lets me unlock the phone only to bring me to a frozen black bacground (apps present) then back to the lock screen. I've tried using odin to flash stock images and slideloading ota updates yet my problem continues. Is there a step im missing or is this game over for my s4