Thread: Kindle 4NT black demo unit
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Old 12-31-2012, 02:11 AM   #9
geekmaster
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Join Date: Nov 2011
Location: Multiverse 6627A
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Quote:
Originally Posted by Solaris81 View Post
What is the UYK menu?
...
I think the only way i can get this black kindle connecting is to have it running the firmware i believe it ships with which is 4.1.0.
UYK is a common acronym used here at MR, for "Update Your Kindle".

It makes sense that firmware updates older than 4.1.0 may not support the new K4B serial number prefix. In fact, I think that the hack update packages needed to be modified to support the new serial number prefixes as I recall). The older firmware updates may not support the new serial number, which would explain the grayed-out UYK menu.

So, we may need a newer firmware image to properly debrick a K4B.
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