Originally Posted by DrunkenDonkey
Hey guys, I'm confused a bit about the models here and could not find in the sticky pages which is which... this topic is marked K5, does that $69 kindle qualify or it is out of the question? It is K4?
That's a K4. In general, you only need to look at the firmware number shown in the device info. Firmware 3.x is K3, FW 4.x is K4, FW 5.x is a K5.
So, your K4 does not "qualify" for the "happy camper" package (JBPatch core and all the described patches - that's K5 only). However, if you scroll back a few posts, you'll see that JBPatch as such has been ported to (and is known to work on) the K3. There is no reason why it wouldn't work on the K4, but nobody tried to make it run on that Firmware yet.