[Kindle 4: Jailbreak and SSH] #kindle #ssh #jailbreak

readme.md

Following this guide: https://wiki.mobileread.com/wiki/Kindle4NTHacking#SSH.
Using Kindle 4.1 and macOS 10.14.

Jailbreak

1. Connect the Kindle. It should be recognized as a USB Mass Storage Device.
2. Download the jailbreak archive
3. Copy data.tar.gz, ENABLE_DIAGS, and diagnostic_logs to the Kindle folder.
4. Restart the Kindle into Diagnostics Mode.
5. Reboot the Kindle from the Diagnostics Mode. Reboot screen should show jailbroken screensaver.

SSH

1. Download the USBNetwork archive needed to enable SSH over network access.
2. Edit the usbnet/etc/config file if needed. I changed:
   1. K3_WIFI="true"
   2. USE_OPENSSH="true"
   3. (Optional) K3_WIFI_SSHD_ONLY="true" (only after first time connecting via SSH and setting up auto-enabled USBNetwork)
3. (Optional) rename usbnet/DISABLED_auto to usbnet/auto to enable USBNetwork Utility start on device startup.
4. Enable the USBNetwork Utility from the Kindle (enable the keyboard if needed); type:
   1. ;debugOn
   2. ~usbNetwork
   3. ;debugOff
5. Connect the Kindle again.
6. Manually configure the device IPv4:
   • IP Address: 192.168.15.201
   • Subnet: 255.255.255.0
7. Obtain the Kindle root user password:
   • Enter the Kindle S/N into the Kindle Root Password Tool to get the root password for SSH access.
8. SSH into the Kindle: ssh [email protected] and enter password from previous step

@cyrillkuettel Thanks for the quick reply!

Yeah it's Amazon's newest Kindle. I actually had that exact tab from Mobileread open, but couldn't get it to work. I also didn't see authorized_keys folder or files named that on my Kindle.

I'm actually trying to find a solution how to upload files from KOReader to Dropbox (download obviously no problem). One user seems to have developed a quick & dirty solution here on Github.

So since I have no idea how to get his solution up & running I thought I'd try the whole syncthing, which requires USBNetwork hack, SSH and so forth.

I'm on a PW5, I enabled SSH and usbnet/auto. I have networking working, but the password doesn't work. From what I read above, I need to drop a pubkey in usbnet/etc/authorized_keys.

However, my device no longer shows up as a USB storage device. How do I make it do that? Am I screwed?

Edit: Ahhh, went into KUAL and turned usb network off again.

By the way, you can just use telnet. This is a great trick if anyone has trouble with ssh [email protected],

Telnet is installed [source] from here easier to use:

telnet 192.168.15.244
mntroot rw
cd /mnt/us/usbnet/etc
# just put your public key in authorized_keys, so ssh will work in the future

Edit: And no, telnet doesn't require password :)

please make a video tutorial