Odin mode only (never rooted)
Been trying all weekend to help my brother-in-law get a working phone again after a failed stock OTA update to 4.3.
Sprint told him it couldn't be fixed, so I wanted to give this a try before shelling out money. http://forum.xda-developers.com/show...odin+mode+only
It took a while but I got Odin to install the stock 4.3 update. It ran fine and Odin said passed. I'm not sure what happened, but it never did boot up on the reboot. Now I'm stuck with no recovery or bootmode (both give vibration like the phone is starting, but just black screen forever.) I can get to download mode on the phone, without the memory card work around. But Odin (doesn't seem to matter what version, or USB ports/cords) gets stuck at either Setting up Connection or Initialization.
I've tried updating the PIT file, recovery (stock or CWM/TWRP), and both the 4.3 & 4.1.2 stock firmware updates and none of them have worked. I also tried a stock 4.1.2 one-click with data wiping, which failed at "Get PIT for Mapping".
I'm completely baffled and would appreciate any suggestions!