I've got the replacement screen for a very good bargain price.
Now my pw is on it's way, but I would like to fix the k3.
Problem is, that my kindle was already on fw 3.4 before the broken screen, so no fw update could help (I've read somewhere that that have helped someone) .
I'm not an engineer, but I like to poke around with stuff.

As I understand from the diag menu, the wbf for the waveform can be flashed easily if I have the right file.
The only mention about this that I have found is on the 4pda forum, where and that the seller has sent the necessary file.
Unfortunately my seller is gone and still hasn't answered me.
It seems that the k3 was sold with more then one type of screens, and mine was sold with an older one (I bought it on 2011.02).
I hope that maybe kubrick can help.
Within 2 days I will be able to try it out.
But it's actually the same good quality when I read books or text on it, the only problem is with pictures/screensaver.