06-21-2012, 01:32 AM | #1 |
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UnJailbreaking Kindle 4 NT
Some time ago I took steps to remove ads from my Kindle. My mistake (as it never actually worked) and now I want to update my firmware.
I'm currently at 4.0.1 I made changes to the kindle via SSH which I reversed (so I think) and did a factory restore (which I know does nothing useful) Despite this I can't update and it's error U006 (Which I found out means that the update doesn't like something I changed) Attached is the logs after a attempt at update. Is there anyway that I can restore it quick and easy? If not I can SSH in and make changes but I may need original files to do that. Sorry if this was asked and anwered, I did search and found nothing that would helped. |
06-21-2012, 02:53 AM | #2 |
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I presume, you haven't backup of original Kindle files and kernel.
I believe, upload this backup to your Kindle should make update successful. So you can download original backups here: http://pastebin.com/Wdw4L7yT - this link is also in "debricking" sticky You can easily flash kernel with fastboot, and main over ssh with dd command, look here: https://www.mobileread.com/forums/sho...d.php?t=180789 Last edited by hostar; 06-21-2012 at 04:43 PM. |
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06-21-2012, 03:14 AM | #3 |
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Last edited by knc1; 06-21-2012 at 03:36 AM. |
06-21-2012, 03:19 AM | #4 | |
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If not, perhaps we need to add more references to that topic. |
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06-21-2012, 03:31 AM | #5 |
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knc1: ohh, you are right, I forgot, I corrected it. Thanks
Last edited by hostar; 06-21-2012 at 04:42 PM. |
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06-22-2012, 08:40 AM | #6 |
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The line no 4493 in your logs indicates that the update script is trying to patch one of the original screensaver images, but fails because it's probably not there.
Code:
120621:041225 ota_install: I def:patch:patchinfo="/opt/amazon/screen_saver/600x800/01N.png":patching file 120621:041225 ota_install: C def:patch:patchinfo="/opt/amazon/screen_saver/600x800/01N.png":patch failure Alternatively you can just reflash the whole system partition. Last edited by akleiw; 06-22-2012 at 08:44 AM. |
06-23-2012, 09:15 AM | #7 |
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Thanks for reply. Sorry I haven't responded. I restored the stock images before posting here but maybe I forgot something. Other wise I'll try the other stuff and let you know
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06-24-2012, 12:46 AM | #8 |
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Ok, so I'm rebricked I followed the guide hostar gave (the PDF one) substituting K4 files for the K5 ones. Everything went exactly as planned up until the last reboot...now I'm bricked again and can't repeat the process (I tried, it no longer recognizes when I do the power/home button trick)
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06-24-2012, 08:53 AM | #9 | |
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06-24-2012, 09:13 AM | #10 | |
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Maybe a default screen saver: "Charge before re-programming" ? Erase and program functions of the eMMC are very slow and power hungry functions. Not starting with a fully charged battery may be causing a lot of the problems we read about here. |
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06-24-2012, 09:17 AM | #11 | |
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06-24-2012, 09:21 AM | #12 |
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06-27-2012, 09:38 AM | #13 |
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So you can download original backups here:
http://pastebin.com/Wdw4L7yT - this link is also in "debricking" sticky Does anyone knows the ssh root password for kindle 4NT image posted there? I have restored my kindle using K4 main image from the post above and now my password fiona5103 does not work anymore. |
06-27-2012, 09:50 AM | #14 | |
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Using "diags mode" - - Mount the "main mode" file system on mmcblk0p1 somewhere - At <mount-point>/etc/shadow; change the hash of the root password to the hash of a password you know. Dealer's choice. |
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06-27-2012, 01:27 PM | #15 | |
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