K3 Jailbreak for Kindle 3.4 - model D00901 serial B008

Hi:
I purchase next kindle:
Serial: B008 etc. etc. etc.
Model: D00901
Version: Kindle 3.4 (1725970040)

I am trying to install Jailbreak but I can´t do yet. The procedure used is:
1.- "Reset to Factory Defaults"
2.- From jailbreak copy src folder & update_jailbreak_0.11.N_k3w_install.bin in root device.
3.- "Update Your Kindle"

During the install I get next message:
Found another jailbreak aborting...
U006

I tryng the next two jailbreak with same results:
- kindle-jailbreak-0.11.N.zip
- kindle-jailbreak-0.11.N.niluje.zip

Thanks a lot for your help.