Some hacking inspiration for the unjailbreakable kindles

bozza111 · 08-26-2018, 12:44 PM

Thinking outside the box.

In 2004 when the new monochrome ipod came out, known as the fourth generation ipod, it was impossible to run custom software on it, such as the Linux OS.

This was because it had an encrypted second stage bootloader. The previous generation ipods didn't.

A member of the ipodlinux community found a way to execute some limited amount of code, not enough to dump the decrypted bootloader. However the code could send instructions to the built in ipod piezo speaker. It could only make squeaks and clicks.

He proceeded to dump the bootloader by instructing the piezo speaker to squeak out the whole bootloader, which he recorded with a microphone - leading to the full jailbreak of the 4th gen ipod.

https://blog.codinghorror.com/ipod-hacking-via-modem/

knc1 · 08-26-2018, 01:51 PM

Wrong forum, use the "Kindle Fire" forum.
The grayscale Kindles do not (currently) have factory installed Android.

pdurrant · 08-26-2018, 01:55 PM

I don't think this is solely applicable to android. It is worth bearing in mind alternative ways of exporting information from devices.

bozza111 · 08-26-2018, 01:57 PM

Isn't the kindle OS a modified version of Linux? I posted this here not to try and boot a different OS on the kindle, but because it is an interesting read about someone using a clever technique to jailbreak a device.

08-26-2018, 12:44 PM	#1
bozza111 Connoisseur Posts: 59 Karma: 7542 Join Date: May 2018 Device: KOA2	Some hacking inspiration for the unjailbreakable kindles Thinking outside the box. In 2004 when the new monochrome ipod came out, known as the fourth generation ipod, it was impossible to run custom software on it, such as the Linux OS. This was because it had an encrypted second stage bootloader. The previous generation ipods didn't. A member of the ipodlinux community found a way to execute some limited amount of code, not enough to dump the decrypted bootloader. However the code could send instructions to the built in ipod piezo speaker. It could only make squeaks and clicks. He proceeded to dump the bootloader by instructing the piezo speaker to squeak out the whole bootloader, which he recorded with a microphone - leading to the full jailbreak of the 4th gen ipod. https://blog.codinghorror.com/ipod-hacking-via-modem/ Last edited by bozza111; 08-26-2018 at 12:46 PM.

08-26-2018, 01:51 PM	#2
knc1 Going Viral Posts: 17,212 Karma: 18210809 Join Date: Feb 2012 Location: Central Texas Device: No K1, PW2, KV, KOA	Wrong forum, use the "Kindle Fire" forum. The grayscale Kindles do not (currently) have factory installed Android. Last edited by knc1; 08-26-2018 at 01:55 PM.

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08-26-2018, 01:55 PM	#3
pdurrant The Grand Mouse 高貴的老鼠 Posts: 71,490 Karma: 306214458 Join Date: Jul 2007 Location: Norfolk, England Device: Kindle Voyage	I don't think this is solely applicable to android. It is worth bearing in mind alternative ways of exporting information from devices.

08-26-2018, 01:57 PM	#4
bozza111 Connoisseur Posts: 59 Karma: 7542 Join Date: May 2018 Device: KOA2	Isn't the kindle OS a modified version of Linux? I posted this here not to try and boot a different OS on the kindle, but because it is an interesting read about someone using a clever technique to jailbreak a device.

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