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Old 02-19-2012, 10:15 PM   #16
geekmaster
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Here is another tool to help repairing kindle touch and k4nt:

https://www.mobileread.com/forums/sho...d.php?t=169645
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Old 02-21-2012, 02:09 AM   #17
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Hi geekmaster,

found this one: https://www.mobileread.com/forums/sho...36#post1389636
GAME OVER!

The only alternative to a classical jailbreak would be the 'data.tar.gz', but it overwrites existing files so I guess the less invasive option is the jailbreak followed by the usb-hack...

I really hoped to avoid that...

Greetings

Kim
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Old 02-21-2012, 12:25 PM   #18
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Quote:
Originally Posted by kimkindle View Post
Hi geekmaster,

you wrote:



Well 'from there' is the problem - my intention is still to save up the system, before I apply any 'extras'



That's fine, and it works the way you mentioned (Vol- + POWER), but, how does that help me? I think I'm not fully aware of what 'USB Downloader Mode' means?
Tried it with my XP and device manager came up, asking to install new hardware and unfortunately also asked for some driver it couldn't find...

ANY hint on that one?

Greetings

Kim

P.S.: About that '~exec' command - according to my readings it should act like a 'sudo' without the need for authentification, could you confirm on that?
USB HID (Recovery/Downloader) mode for the Kindle 3 uses different software tools (AdvancedToolKit) than the Kindle 4 or Touch (MfgTool or sb_loader). I plan to support the Kindle 3 when I have time.

I think that ~exec is disabled in the Kindle 3, which is WHY a jailbreak is needed to run linux commands. All the jailbreak does is install a custom UPDATE key, so that other apps signed with that key can be installed using the Kindle Update process.

To run linux commands on your Kindle without a jailbreak, you must exploit a security loophole somewhere in the Kindle, just like the jailbreak does. The "data.tar.gz" exploit does not work on a Kindle 3. You can study the different Kindle 3 jailbreak source code (yifanlu's or NiLuJe's) if you want to learn how they work and what Kindle 3 bugs they exploit.

Last edited by geekmaster; 02-21-2012 at 12:34 PM.
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Old 02-23-2012, 01:16 AM   #19
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Hi geekmaster,

you wrote:

Quote:
Originally Posted by geekmaster View Post
I think that ~exec is disabled in the Kindle 3, which is WHY a jailbreak is needed to run linux commands.
Except for that one lucky guy in here who received an improperly reseted device from Amazon ('/test'-directory)

Quote:
To run linux commands on your Kindle without a jailbreak, you must exploit a security loophole somewhere in the Kindle,
But that sounds like a hell lot of work - for instance the busybox comes with an implementation of wget that might be prone do that 'serverside-generated-names' bug, but does WebKit make use of wget and is it run with extended privileges? Well, question best to be answered from 'inside', I'ld say.

Quote:
You can study the different Kindle 3 jailbreak source code (yifanlu's or NiLuJe's) if you want to learn how they work and what Kindle 3 bugs they exploit.
Which one do you prefer? Only had a look at yifanlus sources for now: http://yifan.lu/p/kindle-jailbreak/

Allthough the published src is 0.5.0 and the hack I need is 0.5.1, I think the 'magic' part is the hook.dat which foists any arbitrary bin upon the kindle!?

Actually I'm afraid I don't dare to set up the required toolchain to compile myself, chiefly due to lack of time -- but if you could provide some nicely written HOWTO on that topic, I'ld be glad to read...

Greetings

Kim
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