JBPatch

[7hir7een]

Originally Posted by levante

Screensavers, new fonts, fontsize and marging hacks Ok.
Only this thing related with margin hack:

That happens when you tweak margins with css also, so it isn't just because of the hack.


While I'm waiting on my new pw2 to show up... levante, what did you do differently the first and second time that you got the hack to work correctly with no kindle repair screen? I did not have good luck tweaking the jar myself. At all.

I want the margin hack badly enough to install this even with that risk, but would like to try very hard not to brick another kindle

[levante]

The first time I updated to 5.4.2 with all the hacks installed. I reinstalled python, prerequisites, etc. and when I reinstalled fonthack (the last of all) the kindle bricked.

After the factory reset the kindle was "clean". I jailbroke again, python, prerequisites and put in it some books. In this moment I saw that fontsize hack had survived the factory reset (perhaps JB and others?). I installed kual and fonthack with success. Later I installed Screensaver hack.

[elchamaco]

Hi,

Examining the margins hack i see that it'll be not so difficult to reproduce the hack in other language. But I've some doubts,

The diferrences between the hacked margins and the original file are the next ones, original left, modified right:



$0A will be the 10 Margin
$14 the 20 Margin
$1E the 30 Margin
$12 the 18 bottom
$0C the 12 Top
?? the 36 for pdf, i don't see this one.

But there are other changes, at 45F0 one byte is added 00, and to the end 18 bytes were removed.

What do you use to edit compiled class files?

Thx for the hack, a very interesting one.

[NiLuJe]

@elchamaco:

https://www.mobileread.com/forums/sho...postcount=1577
https://www.mobileread.com/forums/sho...postcount=1588

@levante/7hir7een:

Also happens when you tweak the reader.pref file manually on a vanilla firmware, FWIW. (Which does permit one to gain a little bit of horizontal space, but not as much as with kaznelson's tweaked jars/JBPatch).

[Barty]

Originally Posted by kaznelson

zxczxc

JBE 0.1.1 - Java Bytecode Editor

ReaderSDK-impl-ln_LN.jar -> ReaderResources_-ln_LN.class -> Open in JBE

Q re JBE. Am I supposed to be able to edit the class file directly inside the jar file? JBE allows me to open the jar file and navigate to and select the class inside it, but when I click save method in the code edit tab, it says The system cannot find the path specified

I have JRE 1.7, win7 x64. there is no space or special char in path. unless it doesn't grok drive:\path

[7hir7een]

Originally Posted by levante

Screensavers, new fonts, fontsize and marging hacks Ok.
Only this thing related with margin hack:

I figured out how to fix the margins for the page flip window. Similar to kaznelson's instuctions before... in the ReaderSDK-impl-en_GB.jar file, go to this:

com/amazon/ebook/booklet/reader/plugin/scrubber/ui/elements/resources/ScrubberUIResource_en_GB.class

Near the very end of that file, change the scrubber.preview.page_button.size value from 58 to something smaller (46 worked for me with my left and right margins on 30)

Only tested on PW 5.4.2

[7hir7een]

Originally Posted by Barty

Q re JBE. Am I supposed to be able to edit the class file directly inside the jar file? JBE allows me to open the jar file and navigate to and select the class inside it, but when I click save method in the code edit tab, it says The system cannot find the path specified

I have JRE 1.7, win7 x64. there is no space or special char in path. unless it doesn't grok drive:\path

With JBE, I believe you could not save the class file unless you had extracted it from the jar. (I can't verify this, as I can't get JBE to run on my mac).

If you use another program called reJ, you can edit the class file from the jar and save directly, no extracting necessary.

[kaznelson]

Originally Posted by 7hir7een

I figured out how to fix the margins for the page flip window.

You searching, how to change font-size in a pop-up dictionary card?
By default - third size (?) from settings font-line...

Originally Posted by Barty

Q re JBE. Am I supposed to be able to edit the class file directly inside the jar file?

JBE required to unpack a class-file from jar.

[7hir7een]

Originally Posted by kaznelson

You searching, how to change font-size in a pop-up dictionary card?
By default - third size (?) from settings font-line...

I haven't been able to find anything like that, unfortunately. It would be nice to make it smaller. I found a couple entries about system cards, but no settings for font size that I could see.

[zxczxc]

Originally Posted by kaznelson

zxczxc

JBE 0.1.1 - Java Bytecode Editor

ReaderSDK-impl-ln_LN.jar -> ReaderResources_-ln_LN.class -> Open in JBE

Methods -> <init> -> [0] Code -> Code Editor tab

For PW/PW2 edit values:

font.contrast.value.list : bipush 254 > sipush 254
font.wordsperline.margin.list [fewest] : 150 > 30
font.wordsperline.margin.list [fewer] : 100 > 20
font.wordsperline.margin.list [default] : 50 > 10
reader.content.leftMargin : 50 > 11
reader.content.rightMargin : 50 > 11
reader.content.topMargin : 40 > 12
reader.content.bottomMargin : 40 > 18
reader.progressbar.height : 25 > 18
reader.progressbar.footer.height : 40 > 18
reader.progressbar.margin : 40 > 18
reader.content.yMargin : 20 > 18

thanks for sharing

[Reagal]

Thanks to kaznelson. The margins hack works perfectly on 5.3.9.
But how to make it works with another language interface, like as Spanish for example?

[levante]

Originally Posted by Reagal

Thanks to kaznelson. The margins hack works perfectly on 5.3.9.
But how to make it works with another language interface, like as Spanish for example?

If spanish is your problem, here there is something for 5.4.2: http://www.lectoreselectronicos.com/...rfaz-espa%F1ol

[Reagal]

Originally Posted by levante

If spanish is your problem, here there is something for 5.4.2: http://www.lectoreselectronicos.com/...rfaz-espa%F1ol

Thanks a lot.
Gracias colega.

[moonster]

Hi!
I need confimation or advice.
I have a jailbreaked FW w 5.3.9 firmware. Obviously the JBPatch gone.
So, my todo list:
- Downgrade to 5.3.4
- Install Kindlet
- Install JBPatch

After the downgrade my books were deleted?
Will the downgrade kill jailbrake?
Thank you!

[ixtab]

Originally Posted by moonster

Hi!
I need confimation or advice.
I have a jailbreaked FW w 5.3.9 firmware. Obviously the JBPatch gone.
So, my todo list:
- Downgrade to 5.3.4
- Install Kindlet
- Install JBPatch

Yep, pretty much. Note that you will need both prerequisites (dev certs and Kindlet JB), but you will realize it if either is missing, and can install them as required.

After the downgrade my books were deleted?

No.

Will the downgrade kill jailbrake?

No, not normally. But even in case it does, you can just re-jailbreak using your preferred method.