[Q] OmniROM on Galaxy S4 SGH-I337M Problems topic

I've Installed OmniROM on my Galaxy S4 SGH-I337M and for a while now its been giving me problems with black screens, unresponsive touchscreen, unusable bluetooth, and apps constantly crashing, but mostly black screen of death, and not just OmniROM, the same happened when i installed CM 11 a while back. I've tried doing a factory reset and wiping it clean, and after i install Omni it STILL gives me problems. does anyone know if this is a kernell problem, a ROM problem, or is my cell phone just completely useless??