1. Reproduce the issue you’re reporting
2. Press the Home button on the touch screen face of the device and one of the volume buttons on the side of the device at the same time to create the stackshot file.
Note: Please press this button combination several times to capture multiple stackshots when the issue is occurring.
3. Sync your device with iTunes
4. Files starting with “stacks” in this format “stacks-yyyy-mm-dd-xxxxxx.log”, should appear after the sync is completed in a folder on your host computer like the ones listed below with today’s date in place of the yyyy-mm-dd portion of the strings below:
OS X:
~/Library/Logs/CrashReporter/MobileDevice/<iPhone name>/stacks-yyyy-mm-dd-xxxxxx.log
Note: “~/” your user folder or /Users/[your_user_name_here]/Library/Logs/… not the root level /Library/Logs/… path
5. Attach the stackshot files that correspond with the dates of your button presses to the bug.