You can update your Kindle manually and offline through the official update page:
http://amazon.com/gp/help/customer/d...324680&#manual
Here is the software update v2.5.4 for Kindle DX US:
https://s3.amazonaws.com/G7G_Firmwar...e_dx_2.5.4.bin
The steps what I did to make usbNetwok working:
1- I installed:
kindle-2.5-jailbreak-0.1.N.zip
2- Then I installed:
kindle-2.5-usbnetwork-0.11.N.zip
3- I copied whole "
usbnet" folder from previous archive to my Kindle root directory.
By the way .. I just have a Telnet and SSH connection, but wireless feature has
not disabled, and I didn't got the intenet connection in Kindle from my computer networking !
Is there a solution for that ?