When a iOS app crashes on the device it generates a .crash file which needs symbolication before we can read it and locate the problem

What do you need

1.- The crash file (.crash)

2.- The symbols file (.dSYM) which can be accessed from the Xcode Archives Tab of the Organizer

How to do it

1.- Copy the .crash and .dSYM file to the same folder

2.- Execute the following command on the terminal: ** symbolicatecrash app.crash app.dSYM**

The symbolicatecrash command is in the following path /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/PrivateFrameworks/DTDeviceKit.framework/Versions/A/Resources/symbolicatecrash in Xcode 4.0