Hacks Kindle DX - Any way to disable screensaver?

[SalvaG]

The new firmware has changed the file that needs to be patched, so the hack has to be made again, but the original author is missing and missed - just hope he is well.

[aru]

Hello,

I used the mod on my Kindle DX (Software version 2.1) and it worked flawlessly. I got the small lock instead of the amazon pictures.
Today I tried to update to the new software 2.3 which did not work. I uninstalled my hack, using one of the uninstall files and the amazon pictures start to come back. However the install 2.3 still does not work. It executes properly, but then the version is still 2.1.
I talked with amazon and they downloaded a service log from my Kindle. Then I received an e-mail that the update would not work, because I modified my Kindle.

Can anybody tell me how to unmodify my kindle, or how to force the update??

Thanks to the kind soul that can help me.

Add on: Talked to Kindle Support again and they said it can't be fixed. I can buy another Kindle (refurbished $250) or they would exchange it if the screen or the modem would go bad...
After that I tried to install and uninstall the new version, did a reset; and now the 2.3 update will not go through anymore (installation fails).
Does anybody know how to completely restore the OS/Software on the DX?

[angelad]

Originally Posted by SalvaG

The new firmware has changed the file that needs to be patched, so the hack has to be made again, but the original author is missing and missed - just hope he is well.

Yea, I found out the hard way...

[aru]

I actually found an old version of the hack with the right uninstall tool. All is well now !

https://www.mobileread.com/forums/new...treply&t=73466

[Jagasian]

Originally Posted by SalvaG

The new firmware has changed the file that needs to be patched, so the hack has to be made again, but the original author is missing and missed - just hope he is well.

Updating the "last page" screensaver hack should be possible. The key is to create a new binary diff and md5 hash for the framework-impl.jar. Here is how you'd go about updating the hack to work with the current latest firmware (version 2.3.3):

1. For each firmware version (2.1, 2.1+hack, and 2.3.3): extract the .class files from framework-impl.jar and decompile them into .java files, so that you have 3 separate directories containing the full source code (.java files) for framework-impl.jar

2. Use a three-way merge source code tool to merge the diff of the .java files for version 2.1 and 2.1+hack into the .java files for 2.3.3. Most likely the diff between 2.1 and 2.1+hack is very small, because this hack should only be changing a small part of the framework. This results in the source code for version 2.3.3 of framework-impl.jar, with the hack applied. Let's call this 2.3.3+hack.

3. Compile the .java files for 2.3.3+hack. This creates a bunch of .class files.

4. Create a new jar file containing the 2.3.3+hack .class files.

5. Use a binary diff tool to create a new binary diff of the framework-impl.jar for version 2.3.3 and version 2.3.3+hack.

6. Compute the md5 hash for version 2.3.3+hack of the framework-impl.jar and update the install.sh script to use this new md5 hash.

[kindlepilot]

OK ....so can someone step up and and update this hack as described above? I'd do it if I knew what the hell he is saying.

[SalvaG]

Thank you very much, but I also don't have a clue about doing it.

[josetann]

If anyone has the 2.1 files, I could give it a shot. Alas, only have 2.3.3 here.

[jmoates72]

Is this what you need?

http://kindle.s3.amazonaws.com/Kindl...7560062.tar.gz

I'm also a pilot, wanting to fix what seems to me to be a crazy oversight on the part of Amazon. Use more power to put the Kindle into powersaver mode, and don't give ths user a choice in it.

[picky-picasso]

Also, ebs explained how he created the hack, for those who understand Unix hash coding, as follows:

Code:

[root@kindle us]# pwd
/mnt/us
[root@kindle us]# mkdir screensaver-lp
[root@kindle us]# cd screensaver-lp/

Use scp to copy screensaver-lp.tar.gz to /mnt/us/screensaver-lp, then

Code:

[root@kindle screensaver-lp]# tar xzf screensaver-lp.tar.gz
[root@kindle screensaver-lp]# ls -al
drwxr-xr-x 2 root root 4096 Jul 4 02:04 .
drwxr-xr-x 8 root root 4096 Jul 4 02:03 ..
-rwxr-xr-x 1 root root 6447 Jun 28 01:39 bspatch
-rw-r--r-- 1 root root 9739 Jul 4 2009 framework-impl.jar.bdiff
-rwxr-xr-x 1 root root 890 Jul 4 2009 install.sh
-rwxr-xr-x 1 root root 683 Jul 4 2009 restore.sh
-rwxr-xr-x 1 root root 15726 Jul 4 02:03 screensaver-lp.tar.gz
-rw-r--r-- 1 root root 1539 Jul 4 2009 ss_lock.gif
[root@kindle screensaver-lp]# mntroot rw
system: I mntroot:def:Making root filesystem writeable
[root@kindle screensaver-lp]# ./install.sh

install: screensaver-lp v0.01, Sat Jul 4 02:06:12 UTC 2009
Done!

To remove, run restore.sh script

NO Implied warranty of any kind, by the way, with ebs, I strongly recommend you take some "anti-bricking" precautions, e.g. usbnetwork auto-start. This is potentially dangerous hack.

[kindlepilot]

"for those who understand Unix hash coding"

Ok how about those of us that don't?

[Eadon]

I just purchased My Kindle DXi with firmware rev 2.5 and I was unable to get this “last page” hack to load. Is there new verson of “last page” available？

[meem]

Originally Posted by ebs

Here are screenshots and a new version (uninstal v0.02 first, if you have installed it).

Thank you ebs for this great idea.

[meem]

@ebs:
"Screensaver Last Page" is really a prerfect idea.

Can you make an update for Kindle 3 and new Kindle DX/DX Graphite ?
Thank you.

[dcstoked]

Anybody successfully create a hack that allows for the last page read to stay as the screensaver? I use a Kindle 3g, and got an error message when I tried to use the hack from this thread? I really want to see the last page read, and not whatever amazon wants me to see. HELP me by telling me where to look for this most useful hack.

Daren Strange