Chosen Solution
The USB OTG on my Note 4 is not working. It might be a defect in the charging port. I am considering trying to replace it with the Galaxy Note 4 Charging Assembly (AT&T) Item code: IF278-011-1 that I found in the Ifixit store. Does this unit support OTG USB? Thank You!
The charging port daughter board must match your model. What model number do you have? If you have an AT&T model, it can work. Big word of caution, the LCD is incredibly difficult to remove, and when you do, you will lose some water resistance.
