You didn't read the instructions clearly.
http://www.sdx-developers.com/index....a&topic=1458.0
Download - Version 5
joeykrim-SDX-a2.1-root-v5.zip
Installation instructions remain the same and are listed below.
Installation of Root - joeykrim Recovery 2.1.3 - Apply update.zip Method
Load the joeykrim-SDX-a2.1-root.zip onto the sdcard. Use either mount to /sdcard and adb push or mount to USB and copy from host computer.
Details for ADB:
Double check sdcard is mounted. Sdcard Options -> Mount to /sdcard
adb push c:\android\joeykrim-SDX-a2.1-root-v5.zip /sdcard/
Select Apply Update .zip from Menu
Select joeykrim-SDX-a2.1-root-v5.zip
Apply and Reboot
Here are the exact instructions I followed.
http://www.samsungmomentforum.com/ro...2822/#msg12822
scroll down to you see this.
Rooted leaked version of 2.1::
Once you flash the above version (SPH-M900_MR2_DD03_REL-joeykrim-recovery-2.1.3.tar), you can apply the root achieved by joeykrim and his SDX crew.
Download his root here:
http://www.sdx-developers.com/index....a=view;down=97
Once you download the file, copy it to your sdcard. Once the file is on sdcard, go into recovery mode (volume down + talk + end) and apply it via the update zip tool and that should give you root.