Yep, the tab 3 GT-5210 with x86 processor wont reboot from odin mode. Ive tried the suggestions here and elsewhere and agree with the others in this thread. Ive held down the power button for minutes by hand, and now it has been about 20 mins and counting with tape holding it down. Odin 3.09 can see the device and talk to it, but it wont reboot it without a flash. Ive seen suggestions elsewhere that flashing a blank file will work around the issue and cause the auto reboot to happen, but it does not. Odin fails to load the file, then does nothing and does not auto reboot. When I disconnected the tab from the pc after playing with odin, the battery part of the tab was warm so it had been charging off the pc
Ive been searching quite a while, it seems the only way to get out of odin mode is to wait for it to go flat as discussed here.
---------- Post added at 10:54 AM ---------- Previous post was at 10:29 AM ----------
Ok, I created a way to do this.
Firstly you need odin 3.09. My version contains "Odin3 v3.09.exe" which is 2290688 bytes with an MD5 sum of 46947de16219dcbec41c8290353ad50c
Open the exe in your favorite hex editor and at offset 712A change 75 to EB. This disables the "no bin file is selected" error message, so you can do nothing and cause the reboot.
This screen shot was taken after the reboot. Configure the app like this and click start. It'll do nothing, reboot, and say PASS!
due to being < 10 posts I cant post this link. But you can resassemble it. Mods, if you want to verify this link and fix my post, go ahead.
http: // i.imgur.com / X41Cq3s.png
If your not confident with odin and dont want to risk your tablet, your better of waiting for the battery to go flat. But if you understand the risks and what ive done here, maybe it'll save you the wait.