[KT 5.1.0] Web jailbreak

[mmatej]

Originally Posted by geekmaster

What method. Please post a link, to help others reading this thread. I find it incredibly frustrating when google takes me to a site that describes EXACTLY my problem, and the thread ends with "I fixed it" with no information that helps me fix the same problem.

Let's not do that to somebody who finds your "I fixed it" post. Thanks...

It's annoying me too, so I am very sorry to let this happen. I was in a hurry, so I did not realize it.
It simply deletes the file "/etc/uks/pubdevkey01.pem".

[geekmaster]

Originally Posted by mmatej

It's annoying me too, so I am very sorry to let this happen. I was in a hurry, so I did not realize it.
It simply deletes the file "/etc/uks/pubdevkey01.pem".

Thanks. And thanks from future digital archaeologists too.

[mmatej]

One small question... is it safe to delete the "/var/local/java/keystore/developer.keystore" too? The jailbreak copies it to the place, but I can't find if it's the original part of FW (the 5.0.0 images are pre-jailbroken).

[geekmaster]

Originally Posted by mmatej

One small question... is it safe to delete the "/var/local/java/keystore/developer.keystore" too? The jailbreak copies it to the place, but I can't find if it's the original part of FW (the 5.0.0 images are pre-jailbroken).

It should be safe to delete the "combined developer keystore" file. It contains custom keys for "unauthorized" kindlets. It is always wise to first make a backup copy of any files before you delete them, and keep a record so you can undo your changes.

[mmatej]

Originally Posted by geekmaster

It should be safe to delete the "combined developer keystore" file. It contains custom keys for "unauthorized" kindlets. It is always wise to first make a backup copy of any files before you delete them, and keep a record so you can undo your changes.

Thanks, I've changed it accordingly. It can't make a backup copy of files erased because the unjailbreak should revert the mess made by the jailbreak (revert to the original state).

[geekmaster]

Originally Posted by mmatej

Thanks, I've changed it accordingly. It can't make a backup copy of files erased because the unjailbreak should revert the mess made by the jailbreak (revert to the original state).

"Proper" hacks that have an "uninstall" function generally make their own backup copy of anything that they change or delete. Unfortunately, the K4 and K5 make it easier to make hacks, and some of them make irreversible changes, which may require "debricking" (or manually replacing hacked files) to undo them.

[mmatej]

Originally Posted by geekmaster

"Proper" hacks that have an "uninstall" function generally make their own backup copy of anything that they change or delete. Unfortunately, the K4 and K5 make it easier to make hacks, and some of them make irreversible changes, which may require "debricking" (or manually replacing hacked files) to undo them.

Actually, after installing the "unjailbreak", these affected parts of the jailbreak will be deleted = reverted to the original factory state. I don't see any need to backup these files.

[geekmaster]

Originally Posted by mmatej

Actually, after installing the "unjailbreak", these affected parts of the jailbreak will be deleted = reverted to the original factory state. I don't see any need to backup these files.

In this case no backup is needed. But as a general default policy, backups are good. We do not want to give people ideas that just deleting files will fix their problems. It is better to let an uninstaller script delete specific files for them.

I try to post extra information to help beginners following these threads (not aimed specifically at you). Anyway, back on topic, thanks for posting what you did.

[mmatej]

Originally Posted by geekmaster

In this case no backup is needed. But as a general default policy, backups are good. We do not want to give people ideas that just deleting files will fix their problems. It is better to let an uninstaller script delete specific files for them.

I try to post extra information to help beginners following these threads (not aimed specifically at you). Anyway, back on topic, thanks for posting what you did.

Yes, backups are good, but I don't backup very often. When the old free hosting provider had technical problems, I've lost the jailbreak site's database ( free hosting providers are unreliable). Also, you are welcome

[gwas]

I got good results with my ver. 5.1 kindle from the jailbreak-kt.tk site, thank you. My device had not been previously jailbroken, & I paid to have it be advertising free beforehand...

Now I need to cook up some software

[mmatej]

Originally Posted by gwas

I got good results with my ver. 5.1 kindle from the jailbreak-kt.tk site, thank you. My device had not been previously jailbroken, & I paid to have it be advertising free beforehand...

Now I need to cook up some software

I am glad there is the first official response that it have helped someone. Feel free to create software for your Kindle now!

[mmatej]

Originally Posted by thomass

Uninstallation of other packages are missing also.

Just a thought: You can use seperate pages(tabs) for installs and uninstalls .

As I've promised, I've added that functionality to the site! Feel free to suggest another things when you have more good ideas.

[NiLuJe]

@mmatej: FWIW, the packaged jailbreak uninstaller *doesn't* remove the developer keystore, because it *may* have been modified by the user/OS during the time the device was jailbroken.

On the other hand, it's in /var/local, so it would get squished by a factory reset anyway, .

[cyclops0000]

Originally Posted by mmatej

No, not really but the device could be taken over completely - disabling updates and so, then Amazon could not destroy the botnet by issuing OTA update. Maybe they could disable 3G then for FW 5.1.0 versions, but it doesn't solve the attacks via WiFi. And I think, FW versions could be faked to allow 3G after Amazon's disable, but I'm far OT now.

so.... it would be possible to use this exploit to disable ota updates?
now to figure out how...

[mmatej]

Originally Posted by NiLuJe

@mmatej: FWIW, the packaged jailbreak uninstaller *doesn't* remove the developer keystore, because it *may* have been modified by the user/OS during the time the device was jailbroken.

On the other hand, it's in /var/local, so it would get squished by a factory reset anyway, .

So what actually the packaged jailbreak uninstaller do? If it doesn't remove "/etc/uks/pubdevkey01.pem" or java dev keystore, it actually does... um, nothing. Or am I wrong?