Originally Posted by shiggins9
I flashed my phone what seemed like 100 times trying everything everyone told me to do and I gave up. My phone is only 4GB but everything works, oh well! I wasted about 100 hours messing with it and nothing can make this 16GB, or ~11GB anyway. I'm hoping to pick up a bigger SD card when I get back in the states as my 16GB is about full, too.
I finally figured this out and fixed my phone. I know you tried several things. So, let me run past you the solution that worked for me.
I located the appropriate .PIT file for my phone (S3 T999 UVDMD5). Then I flashed the stock rom with root (i.e. root66 ROM) with the PIT file. After I flashed it with the correct PIT file, I got my storage back. Have you tried this?
If you have and it didn't work, it's probably because you didn't have a good or the correct PIT file for your phone. Let me know if you want further direction and I'll do my best to assist.