-1

I'm trying without success to patch iPhone calculator to replace the + function with the - function. I do some stuff but when I try to launch it from my iPhone it crashes.

What I do is:

  1. Opening the .app file and looking for the file that contain the code.
  2. Do my work: patch it and then reload it into the phone.
  3. I open calculator.app and copy my executable file in that "folder".

But it does not work and my app crashes.

I try also to rename only some string (basic patch) but the result is always the same. My App always crashes. I think that my method is not correct.

What is my error?

Seki
  • 11,135
  • 7
  • 46
  • 70
Usi Usi
  • 2,967
  • 5
  • 38
  • 69

1 Answers1

0

after you edit the binary, you need to sign it with ldid or ldone. I prefer ldone.

To get ldone, add http://cydia.hackulo.us to your sources and install ldone from that source.

Then with command/ssh run: 

ldone /Directory/of/binary -s

then chmod to binary to 0775 and app should open.

CokePokes
  • 941
  • 3
  • 12
  • 25