You've now successfully flashed your Xoom back to stock. Now it's time to relock the device.
Type fastboot oem lock, wait for the menu, the press the volume-down button. Then press the volume up button. It'll take a minute or so, then reboot. You're now completely back to stock and ready for the update.
I rooted my WFI xoom a couple of days ago and now I want to go back to stock and relock. When I follow the directions listed here I get an error that the boot.img can't be loaded. I am using HWI69 which is also what it is running currently. Thanks in advance for any help.
EDIT: I flashed the system.img again and was able to proceed... all else went exactly as written, but after doing the relock, the system comes up to the batwings
and says "Failed to boot LNX 0x0004
Starting RSD Mode 2"
Any suggestions now, a reset takes me right back to same screen... I can't even get to bootloader anymore