Dropped my phone is salt water, need cost effective ideas

Brianna, "and it isnt very corroded" still means it is corroded. Please remember that rice is a great first aid, but it does not stop corrosion nor does it fix any burned out SMD components. The least I suggest is that you disassemble your phone and clean every part with 90%+ isopropyl alcohol. Use a small brush to do so and do nor forget to clean under all the EMI shields etc. Once cleaned (you may have to do it a couple of times) reassemble your phone, replace the battery and re-evaluate. It is possible that the backlight circuitry has shorted out. In that case, you would have to get a new display. Hope this helps, good luck.