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Old 09-26-2011, 12:52 AM   #31
yifanlu
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Sorry, but this is only a preemptive hack. It doesn't allow you to fix an already broken kindle. You need to have installed it before your kindle broke, so you can recover afterwards if anything happens. It isn't of much use to most people I know. I find it useful because I've bricked like 4 kindles.
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Old 09-26-2011, 05:08 AM   #32
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Thanks for your reply.
i'll try to find another way to solve this problem.
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Old 10-15-2011, 01:36 PM   #33
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Kindle 3.3 unbricking insurance

Quote:
Originally Posted by yifanlu View Post
[snip]
...The only exceptions are if you broke the bootloader or the kernel.
[snip]
...Oh, and so far, it's only for Kindle 3.1.
[snip]
http://yifan.lu/p/kindle-custom-kernel
I am still on 3.1 and I am considering updating to 3.3.

On inspection, after expanding the .bin, I noticed that the 3.3 update will replace the kernel, effectively breaking your 3.1 recovery kernel.

Any chance a new recovery kernel for Kindle 3.3 could be developed?
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Old 10-15-2011, 03:14 PM   #34
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Quote:
Originally Posted by PoP View Post
I am still on 3.1 and I am considering updating to 3.3.

On inspection, after expanding the .bin, I noticed that the 3.3 update will replace the kernel, effectively breaking your 3.1 recovery kernel.

Any chance a new recovery kernel for Kindle 3.3 could be developed?
Amazon hasn't released the source for 3.3 yet, so I can't yet.
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Old 10-15-2011, 03:46 PM   #35
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Oops, sorry for asking.

I was under the impression that your 3.1 recovery kernel was patched from the binary 1) overwriting amazon signing keys with the jailbreak ones and 2) NOP-ing the password check instructions.
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Old 10-15-2011, 04:24 PM   #36
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Quote:
Originally Posted by PoP View Post
Oops, sorry for asking.

I was under the impression that your 3.1 recovery kernel was patched from the binary 1) overwriting amazon signing keys with the jailbreak ones and 2) NOP-ing the password check instructions.
The recovery binary is patched, but I can't just copy and paste it into the kernel. There's various checksums and stuff to prevent kernel corruption. I don't have the time to figure out where all these checksums are and change them.
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Old 10-19-2011, 07:47 AM   #37
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Quote:
Originally Posted by yifanlu View Post
Amazon hasn't released the source for 3.3 yet, so I can't yet.
I just noticed amazon posting the source recently : http://www.amazon.com/gp/help/custom...deId=200203720 but I perfectly understand that you are busy on other projects.

Quote:
Originally Posted by yifanlu View Post
The recovery binary is patched, but I can't just copy and paste it into the kernel. There's various checksums and stuff to prevent kernel corruption. I don't have the time to figure out where all these checksums are and change them.
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Old 10-19-2011, 09:01 AM   #38
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If I had to choose between 3.3 and yifanlu's custom kernel I'd always choose the custom kernel.
I love it.
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Old 10-19-2011, 04:01 PM   #39
yifanlu
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Thanks for the update PoP, I asked Amazon weeks ago for the 3.3 source but they said they don't know when it'll be up. I compared it to the 3.2.1 kernel and the only differences are the power slider now don't have to be held as long to restart or sleep or something. Also, some changes to IP tables. Right now, my first priority is extracting the Kindle 4 nand so when I have free time, I'll do that first. However, my directions for compiling the kernel still works and someone else can feel free to extract the recovery initramfs from my kernel (don't just get the script, get the whole initramfs) and compile the new kernel with the initramfs in the config.
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Old 10-19-2011, 10:14 PM   #40
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How would one go about compiling tun.ko for a Kindle on 3.3? I've attempted it several times and end up with bad symbols in the modules.
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Old 10-19-2011, 10:37 PM   #41
yifanlu
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When you compile a module, you must also compile and update the kernel. Even if nlthing's changed. It's weird, I know. A limitation of Linux.
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Old 10-20-2011, 01:36 AM   #42
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Hi Yifanlu, I bricked my Kindle DX Graphite US version and cannot find rootfs (it seems nobody has it)for that so I decided directly update to 3 version of firmware. As I have found it in internet.

Hi You can delete this post the issue is solved differently, Hawhill Supported me. Thank you everybody.
Attached Files
File Type: zip kindle_update_tool_lite.zip (2.1 KB, 93 views)

Last edited by stranger_st; 10-20-2011 at 06:29 AM.
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Old 10-20-2011, 06:51 AM   #43
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By the way; 3.3 source is available now.
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Old 10-30-2011, 05:31 AM   #44
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I'd like to try and backport stuff from 4.0.1 to 3.2.1; but first some safety I'd need this custom kernel for the above version, did someone already built one? I'd do it myself but I'm quite afraid of bricking.
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Old 10-30-2011, 08:33 PM   #45
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Here's fresh custom 3.3 kernel, which I've just compiled and installed. Have fun.

http://dl.dropbox.com/u/16679763/kin...tom_kernel.zip
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