The jb will work in any state of the Kindle.
You can 'fake register' your Kindle - there is a thread (or more) on the subject here.
If you want to avoid surprise updates, put a **FOLDER** named:
update.bin.tmp.partial
in the top of visible USB storage.
I don't know of any reason to not register the device (other than to avoid agreeing to the EULA).
So go ahead and register it before starting your changes, and leave it registered.
You can get away with using 'fake' information for most of the things Amazon wants to know about you.
Last edited by knc1; 05-21-2016 at 10:53 AM.
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