Originally Posted by Rocket42
HELP. I have been trying to use GTG's ultimate unbrick and retun to stock for 4 days now. I got phone second hand and thought i was getting stock but rooted then found out he actually deleted preinstalled apps!!! I purchased this phone to get the OTA GB upgrade and can't until returned to stock. I installed the samsung drivers got confirmation from my computer , got to putting phone in download mode..which it does but ODIN will not recognize device so nothing shows in COM. I went through the steps anyway...nothing!! debugging on, debugging off, antivirus on, off.. I don't understand. computer..XP said drivers installed. won't work in DL mode. I try to install drivers again PC says already installed. I went to a friends with a brand new pc with win 7. "found new hardware, installing drivers. same thing...NOT RECOGNOIZED ....I ran into this very issue when trying to upgrade my captivate...get into DL then NOTHING. i AM FAIRLY NEW AT THIS BUT NOT STUPID. i read others that have same issue but i find no fixes.
Try different version of Odin,try different USB port,run Odin as admin,use a different USB cord.
Have you tried all of these?
Sent from my SAMSUNG-SGH-I997 using xda premium