Kobo Patcher

[erikssenmar867]

Originally Posted by GeoffR

I have updated the file in post #605 with this patch now.

Wow! I have no words... thank u very much for your work

[Antizip]

I noticed a slightly strange behavior of Kobo Glo with this patch. When I open a book from library the screen flashes two times: when the text appears and then again. I.e. the device forces screen refresh.

Checked on 3.1.0 and 3.1.1. Without patch there is no forced refresh.
I'm fine with this "new feature", but maybe someone has any thoughts how to disable it?

[GeoffR]

Originally Posted by Antizip

I noticed a slightly strange behavior of Kobo Glo with this patch. When I open a book from library the screen flashes two times: when the text appears and then again. I.e. the device forces screen refresh.

Checked on 3.1.0 and 3.1.1. Without patch there is no forced refresh.
I'm fine with this "new feature", but maybe someone has any thoughts how to disable it?

Which patches do you have enabled? I haven't seen anything like this on my Glo, but I am only using the line spacing, font size, and margins patches.

[Antizip]

Originally Posted by GeoffR

Which patches do you have enabled? I haven't seen anything like this on my Glo, but I am only using the line spacing, font size, and margins patches.

I'm using exactly the same config that you posted on previous page.
But i got your point. I'll try to disable all patches and then turn them on one by one.

[GeoffR]

Originally Posted by Antizip

I'm using exactly the same config that you posted on previous page.
But i got your point. I'll try to disable all patches and then turn them on one by one.

I just tried with the footer patch using the disable footer example and I see the double refresh issue. When I use the decreased footer example, or don't enable the footer patch, then it doesn't happen.

If that is the same for you then maybe you need to experiment with the replacement footer to see if something else will work.

[Antizip]

Originally Posted by GeoffR

If that is the same for you then maybe you need to experiment with the replacement footer to see if something else will work.

Tried your solution. Here are the results.

footer patch enabled (no footer) = double refresh
footer patch enabled (footer decreased) = double refresh
footer patch disabled = normal behavior (no double refresh)

I'll try later to experiment with footer settings.

[GeoffR]

Originally Posted by Antizip

footer patch enabled (no footer) = double refresh
footer patch enabled (footer decreased) = double refresh
footer patch disabled = normal behavior (no double refresh)

Perhaps it depends what is on the page the book opens at. I am opening at the beginning of a chapter, no images, just a chapter heading and text.

I tried this instead of the example in kpg.conf to remove the footer altogether and it doesn't double refresh, but then the reduced footer example didn't double refresh for me either:

Spoiler:

<Patch>
patch_name = `Custom reading footer style`
patch_enable = `yes`
replace_xor_9C = 13FD538, `ReadingFooter {\n\tmin-height: 70px;\n\tmax-height: 70px;\n\tqproperty-footerMargin: 40;\n}\n\nReadingFooter[deviceCodeName="kraken"], \nReadingFooter[deviceCodeName="phoenix"] {\n\tmin-height: 82px;\n\tmax-height: 82px;\n\tqproperty-footerMargin: 15;\n}\n\nReadingFooter[deviceCodeName="dragon"] {\n\tmin-height: 120px;\n\tmax-height: 120px;\n\tqproperty-footerMargin: 20;\n}\n\n* {\n\tfont-size: 16px;\n}\n\n[deviceCodeName="kraken"], \n[deviceCodeName="phoenix"] {\n\tfont-size: 20px;\n}\n\n[deviceCodeName="dragon"] {\n\tfont-size: 26px;\n}\n\n[localeName="ja_JP"] {\n\tfont-family: A-OTF Gothic MB101 Pr6N;\n}`, `ReadingFooter {\n\tmin-height: 5px;\n\tmax-height: 5px;\n\tqproperty-footerMargin: 15;\n}\n\n* {\n\tfont-size: 1px;\n\tcolor: transparent;\n}\n\n\x00`

[jackie_w]

Originally Posted by GeoffR

... attached kpg.conf for firmware 3.1.1 (761b066420), it has the footer, line spacing, font size, margins, page break, advanced font controls, wifi insomnia, brightness fine control, and search library default patches.

Thanks, Geoff, for the fantastic speedy response and especially for adding the `Freedom to advanced fonts control`patch to your 'standard update pack'

[Antizip]

Originally Posted by GeoffR

I tried this instead of the example in kpg.conf to remove the footer altogether and it doesn't double refresh, but then the reduced footer example didn't double refresh for me either:

Curiouser and curiouser. I enabled the footer patch with decreasing settings again. And there is no double refresh... Inexplicable but true.

[surquizu]

Originally Posted by DNSB

With the release of firmware 3.1.1, the XOR has been changed to 9C and the address for the ReadingFooter has been changed to 0x13FD538.

Have fun!

Regards,
David

How do you get this data? : Blink:

[ShellShock]

Originally Posted by surquizu

How do you get this data? : Blink:

This is how I would do it: FF hex is 255 decimal, including 0 this gives 256 possible values for the XOR (assuming it is always 2 hex digits). So write a little program to XOR the binary file with all possible 256 values. This will produce 256 output files (include the XOR value in the file name), which you can then search across for a known string e.g.,ReadingFooter. The name of the matching file will contain the correct XOR value.

It sounds complicated, but it is quite a simple program to write, and would probably only take 5-10 minutes to run. I would write it myself but have not bothered as someone always supplies the XOR value here.

[DNSB]

Originally Posted by surquizu

How do you get this data? : Blink:

I used a utility called XORSearch. Basically, feed it a file and a search string and it will list out all the locations that string is found in the file along with the XOR used to obfuscate the string. I run it from a batch file that passed the search string from the command line and pauses at the end of the search to give a chance to see the results.

For 3.1.1, running xorsearch.exe libnickel.so.1.0.0 ReadingFooter

Found XOR 00 position 1CDA20: ReadingFooterC1EP7QWidget
Found XOR 00 position 1CDD55: ReadingFooter7setTextERK7QString
Found XOR 00 position 1CF6E0: ReadingFooter7setFontERK7QString
Found XOR 00 position 1CFFB7: ReadingFooter6updateERK7QStringiibb
Found XOR 00 position 24E7BE: ReadingFooterD2Ev
Found XOR 00 position 24E7D6: ReadingFooter
Found XOR 00 position 24E7E9: ReadingFooterD1Ev
Found XOR 00 position 24E805: ReadingFooterD1Ev
Found XOR 00 position 24E822: ReadingFooterD1Ev
Found XOR 00 position 24E839: ReadingFooterD0Ev
Found XOR 00 position 24E855: ReadingFooterD0Ev
Found XOR 00 position 24E872: ReadingFooterD0Ev
Found XOR 00 position 24E889: ReadingFooter15getFooterMarginEv
Found XOR 00 position 24E8AF: ReadingFooter15setFooterMarginEi
Found XOR 00 position 24E8D5: ReadingFooterC2EP7QWidget
Found XOR 00 position 24E8F8: ReadingFooter7setupUiEP7QWidgetE11initialized
Found XOR 00 position 24E92F: ReadingFooter7setupUiEP7QWidgetE1c
Found XOR 00 position 24E95B: ReadingFooter7setupUiEP7QWidgetE11initialized_0
Found XOR 00 position 24E994: ReadingFooter7setupUiEP7QWidgetE1c_0
Found XOR 00 position 24E9C2: ReadingFooter7setupUiEP7QWidgetE11initialized_1
Found XOR 00 position 24E9FB: ReadingFooter7setupUiEP7QWidgetE1c_1
Found XOR 00 position 24EA25: ReadingFooter16staticMetaObjectE
Found XOR 00 position 24EA4B: ReadingFooter5eventEP6QEvent
Found XOR 00 position 24EA73: ReadingFooter5eventEP6QEvent
Found XOR 00 position 24EA95: ReadingFooter11changeEventEP6QEvent
Found XOR 00 position 2EF8D5: ReadingFooter10metaObjectEv
Found XOR 00 position 2EF8F6: ReadingFooter11qt_metacastEPKc
Found XOR 00 position 2EF91A: ReadingFooter11qt_metacallEN11QMetaObject4CallEiPP
Found XOR 00 position 2EF954: ReadingFooter
Found XOR 00 position 2EF968: ReadingFooter
Found XOR 00 position 115DF3C: ReadingFooter
Found XOR 00 position 11C57A0: ReadingFooter
Found XOR 00 position 11C580A: ReadingFooter
Found XOR 9C position 13FD538: ReadingFooter {..min-height: 70px;..max-height: 70
Found XOR 9C position 13FD58E: ReadingFooter[deviceCodeName="kraken"], .ReadingFo
Found XOR 9C position 13FD5B7: ReadingFooter[deviceCodeName="phoenix"] {..min-hei
Found XOR 9C position 13FD627: ReadingFooter[deviceCodeName="dragon"] {..min-heig

If I know the XOR key, I can also use another little program called XOR which reads in the first file, XORs it with the key and writes the result out.

I originally wrote a program similar to what ShellShock suggested but it was a pain searching through 256 files looking for a string manually and they took up a mass of disk space.

Regards,
David

[surquizu]

Originally Posted by DNSB

I used a utility called XORSearch. Basically, feed it a file and a search string and it will list out all the locations that string is found in the file along with the XOR used to obfuscate the string. I run it from a batch file that passed the search string from the command line and pauses at the end of the search to give a chance to see the results.

For 3.1.1, running xorsearch.exe libnickel.so.1.0.0 ReadingFooter



If I know the XOR key, I can also use another little program called XOR which reads in the first file, XORs it with the key and writes the result out.

I originally wrote a program similar to what ShellShock suggested but it was a pain searching through 256 files looking for a string manually and they took up a mass of disk space.

Regards,
David

: Gracias:

[pietro77]

Hi there
How I should create KoboRoot.tgz for new firmware 3.1.1. When I use kpg.conf 3.1.1 with libnickel.so.1.0.0 i have error :"data for replace in libnickel.so.1.0.0 and kpg.conf does not match!"
What I doing wrong?

[Martina Schein]

@pietro77, please have a look at post 549 at site 37. There you will find the explanation.