Ok so I am in the process of doing this myself. I'm kind of doing this off my own back as I cannot get the AIO tools etc. to work, but there is a nice way of gaining root on 4.1.2. This is on a UK bought Xoom, but it is a MZ604 that has been added to the Google Experience Device program.
Disclaimer: This should be obvious by now in these threads, but I, nor anyone else who's work is involved in this are NOT responsible for anything that happens to your Xoom. By following this guide you are accepting this as fact. All that being said, good luck!
So, assuming you have an unlocked bootloader and with your xoom connected to a PC running Windows do the following:
1) Download the root zip attached (thanks to matt4321 for sharing solarnz zip in the original thread: http://forum.xda-developers.com/showthread.php?t=1965330 )
2) Download the latest version with install scripts from here and extract the windows file to your desktop: http://forum.xda-developers.com/showthread.php?t=1782235 (I'm assuming you can use any recovery image with the installer, however with this at least its all in one and ready to go. I used 2.3.2.3)
3) Put the "Xoom-Universal-Root_modded_4_JB.zip" onto the external SD Card (MAKE SURE IT IS A .ZIP, do NOT extract)
4) Run the RUNME file inside the windows folder on your desktop
5) Use option 2 to boot into fastboot
6) Once fastboot is loaded use option 1 in the prompt
7) This will then install the recovery.
8) Power + volume up to reboot
9) Do not let the device boot into android, it will get rid of the new recovery menu, hold power (on the Motorola dual core splash) and get the device to turn off before android starts loading.
10) Once the Xoom is off, start it again, pressing the volume down key rapidly until you see some options at the top, select recovery, press volume up.
11) Welcome to your new recovery! So, we need to install the root update. So select install zip.
12) Choose the root zip, go through the options and install it.
13) Reboot your device
14) Check for SuperSU
Congratulations, you should now have root on your 4.1.2 GED'ed Xoom MZ604.
Hope this helps someone, as I've been stuck doing this for a few hours now and just figured it out by reading countless threads about this.
Disclaimer: This should be obvious by now in these threads, but I, nor anyone else who's work is involved in this are NOT responsible for anything that happens to your Xoom. By following this guide you are accepting this as fact. All that being said, good luck!
So, assuming you have an unlocked bootloader and with your xoom connected to a PC running Windows do the following:
1) Download the root zip attached (thanks to matt4321 for sharing solarnz zip in the original thread: http://forum.xda-developers.com/showthread.php?t=1965330 )
2) Download the latest version with install scripts from here and extract the windows file to your desktop: http://forum.xda-developers.com/showthread.php?t=1782235 (I'm assuming you can use any recovery image with the installer, however with this at least its all in one and ready to go. I used 2.3.2.3)
3) Put the "Xoom-Universal-Root_modded_4_JB.zip" onto the external SD Card (MAKE SURE IT IS A .ZIP, do NOT extract)
4) Run the RUNME file inside the windows folder on your desktop
5) Use option 2 to boot into fastboot
6) Once fastboot is loaded use option 1 in the prompt
7) This will then install the recovery.
8) Power + volume up to reboot
9) Do not let the device boot into android, it will get rid of the new recovery menu, hold power (on the Motorola dual core splash) and get the device to turn off before android starts loading.
10) Once the Xoom is off, start it again, pressing the volume down key rapidly until you see some options at the top, select recovery, press volume up.
11) Welcome to your new recovery! So, we need to install the root update. So select install zip.
12) Choose the root zip, go through the options and install it.
13) Reboot your device
14) Check for SuperSU
Congratulations, you should now have root on your 4.1.2 GED'ed Xoom MZ604.
Hope this helps someone, as I've been stuck doing this for a few hours now and just figured it out by reading countless threads about this.
