The instructions at:
http://www.xodustech.com/guides/kind...te-demo-unlock
Are quite old and for a different model.
But are well-written, and with a couple of changes ...
Hardware considerations:
The location of the serial port connection pad varies with the models but the pin-out has remained the same since the K4.
Firmware considerations:
First - Your model will not run the version of the firmware given.
Second - Always use the current KindleTool to get your 'Diags' system password from the serial number.
It is the only tool you can trust to be maintained, web pages tend to get out of date.
Third - there is an error in the dd command of the last picture.
It should be:
Code:
dd if=/mnt/us/<correct firmware>mmcblk0p1.img of=/dev/mmcblk0p1 bs=4096
The command as shown **will work**, it just causes the flash chip to cycle 1,000 times as often as required.
Not a 'good idea'.
With the above considerations, the directions on that page should work for any series 5.x device because it tells you how to look-up the starting address for the currently installed firmware. (A nice touch by the Author - it 'future proofed' the directions.)
= = = =
Refs:
Get your KindleTool from here:
https://www.mobileread.com/forums/sho...d.php?t=225030
Don't guess at your model number, use the first 4 or 6 characters of the serial number and this table:
https://wiki.mobileread.com/wiki/Kindle_Serial_Numbers
Don't use an unknown system image, get the current system Update file from Amazon for your model of device.
Note: You can get **any** Amazon update image from Amazon, see how here:
https://www.mobileread.com/forums/sho...postcount=1301
**Do not** try to install a firmware version older than what the device originally shipped with!
Using the Amazon site will save you from that grief, they don't list firmware version too old for the model your looking up.
Of course - you will have to jail break that image after it is installed.
Using an Update image:
See the Diagnostic Menu entry "U - Enter USB mode" ?
(Some versions say: "Export USB storage")
Select that -
Connect USB cable to pc -
Copy the Update image to the highest directory level of the USB storage (alongside documents) -
Safely remove the USB cable from PC -
Use the Diagnostics Menu to exit and re-start the Kindle -
The Demo start-up code will auto-load the Amazon end-user Update file and install it - Job Done.
Now your ready to jail break the newly installed firmware, but you already have the serial port connection - so that will not be a problem even if you had to install a 5.6.x series firmware.