I have a D801 (T-Mobile). I rooted it a while back. I'm a bit of a noob. Recently, I wanted to flash KitKat. To do that, I had to flash a custom recovery. I installed TWRP as that was the one my instructions gave me. However, I am unable to flash anything. I cannot flash kitkat, cwm, stock, etc. I need any and all suggestions to at least flash stock recovery though I would really prefer to flash cwm.