Originally Posted by mojoman0
hm still a little confused. can that tool unroot the permanent root that the kindle fire utility does?
"Permanent root" means it doesn't have to be reapplied every time you boot, not that it can't be removed.
The link I posted is to return your device to completely stock, so it can be RMA'd. I have seen other instructions online to return your device to stock (i.e. No root, no bootloader)