Sure did! Several times!
Go to system settings and check if USB debugging is checked. If its not selected, check it and try the entire root process again.
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Hi! Ok, Windows 8 installed (finally a reason to install this on my iMac - mixed feelings haha). I followed the instructions in the xda link to the letter, and this is what I get from Odin when I load the cf-root as PDA:
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> CF-Auto-Root-m0-m0xx-gti9300.tar.md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<OSM> All threads completed. (succeed 0 / failed 0
The phone doesn't reboot, but stays in download mode. Any ideas?
As I can see from the log, rooting did not succeed. Succeed 0/failed 0. Try flashing it again after turning USB debugging on.