[Help] Get original key for sign apk - General Questions and Answers

how do I extract original key of dev in meta inf file? that's how to fix protected apps and edit them. same but extract key the img of system files such as boot.img . Anyway?

i'm newbie and I don't know how to find threads i asked, need help

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[Q] Problem signing update.zip

Hi all! I have an i9003 and i wish to install a custom update.zip... the problem is that i get always signature problem.
In the log of recovery i see that the program check the sign of package with one file present in the /res directory of the phone called KEY.
My question is.... can i use that key file to sign my package? How?
I see that another member of this forum (for another phone model) make an update.zip and the related key to put in the res directory.. i really would know how he done it....
Thanks in advance.

[Q]How to convert from .tar.md5 ODIN file to .zip Recovery file

Hy everyone i've searched for this on google and XDA but i didn't find anything i want, so the point is i wanna remove some of stock files of system and add someones new and i wanna make a zip file for recovery so then i can simply install the OS from my recovery mod... and when i wanna make some upgrades i cam simply edit with a normaly archiver program like 7-zip, winrar, or powerarchiver or another program.. i wanna specify that i'm new in development on android
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Help with .APK File

Hi Developpers !!
I'm in an urgent need of help !!!
The thing is i have this app .APK that i want to modify,
I open it with winrar, navigate to the file i want to modify (Bitmap image in my case) then i copy it into the Desktop, modify it,
and then put it back in the rar archive without modifying the name or anything.
Then when i try to install (on Agent bluestacks) it it dosen't work !!
There's an Eroor
INSTALL PARSE FAILED INCONSISTENT CERTIFICATES
I watched some turorial on How to Edit image resources inside an android APK file and i did a new signature and it's allways the same error
I really need your help on replacing the file...
PS I uploaded the file .APK and the image i want to replace
Boom_vic said:
and then put it back in the rar archive without modifying the name or anything.
Click to expand...
Click to collapse
That's the problem, you need to sign it first. - http://forum.xda-developers.com/showthread.php?t=2069287
Thanks so much !! I will try this now
Hi
I followed your Topic, i was able to decompile it...but i can't recompile it
can you please do it for me ? cuz i'm in a hurry i need it by Wednesday..
You just have to replace the train480x320.png
in \res\drawable with the same image that i have uploaded with the rar file and sign it..
That would be perfect
thanks in advance

Edit .sin file

Hello everyone,
I am tying to make a "light" official rom of the Z3 by removing some *.apk of an *.ftf file.
I have extracted all the folders from the *.ftf (ftf - system.sin - system.ext4 - files...) and removed all the apk I don't want, but I don't know how to make a new "system.sin" from all the files I have extracted. I looked from the internet, but I am a little noob.
Can someone help me to build a new *.ftf file to flash it with Flashtool ? :crying:
Dracow said:
Hello everyone,
I am tying to make a "light" official rom of the Z3 by removing some *.apk of an *.ftf file.
I have extracted all the folders from the *.ftf (ftf - system.sin - system.ext4 - files...) and removed all the apk I don't want, but I don't know how to make a new "system.sin" from all the files I have extracted. I looked from the internet, but I am a little noob.
Can someone help me to build a new *.ftf file to flash it with Flashtool ? :crying:
Click to expand...
Click to collapse
As far as i known you can't edit .sin / .ftf files as they are signed using sony private key that no one has...
Technical info here:
https://gist.github.com/dosomder/8ed79b26a5e063efa5ef
"And that is the reason why we can not create custom firmwares for Xperia. If you still don't understand, RSA is an asymmetric function.
This means it's using a private key to create the signature and a public key to read it. So even if we find the public key
(which is somewhere on the device), we can never find or guess the private key. Therefore we can not create a valid signature."
But you can create a .zip firmware to be flashed via recovery
I used Flashtool-sin editor on "system.sin" that give me "system. ext4".
With ext2explore I opened " system.ext4" and extracts all files and folders (app, privateapp, etc, build.prop...).
From folders "app" and "privateapp", I removed the *.apk I don't want, but I don't know if I can build a new " system.sin".
There is really no way to reverse ? Make a "system. ext4" from the folders I modified, and convert it in "system.sin" ?
If we can do something in a way, can't we do it on "reverse way" ?
Dracow said:
I used Flashtool-sin editor on "system.sin" that give me "system. ext4".
With ext2explore I opened " system.ext4" and extracts all files and folders (app, privateapp, etc, build.prop...).
From folders "app" and "privateapp", I removed the *.apk I don't want, but I don't know if I can build a new " system.sin".
There is really no way to reverse ? Make a "system. ext4" from the folders I modified, and convert it in "system.sin" ?
If we can do something in a way, can't we do it on "reverse way" ?
Click to expand...
Click to collapse
It cannot be done. 100% impossible.
If you want to make your own rom Google [NUT]'s method to create your own rom.
There is also a tool to create your own prerooted flashable zip, but if course, all of this requires root
Thanks a lot for all your answers...
I won't try to make it in zip...

how to open file .lgk

hello ... any idea to open this file? I need his inside file .. thanks
this is file to upgrade system navigation lg (kia hyundai)
link file https://drive.google.com/open?id=0B5Dw36oySp1Za2NPenloMnRHQk0
up
I ask the same question. Are there any progress in this direction? Really no one was picking with such files? It is very necessary to modify this file.

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