ipad mini crash

I developed an app for all iOS devices. My app was working great in simulators, ipads and iphones, but it got crashes in ipad mini only. I have tried to run the app directly from xcode to my ipad mini, but it still crashed (no log). The app showed the launching screen, and then screen became in black. After a few seconds, apple logo came out again. The whole process just like restarting my ipad mini. I especially tested my app with ipad2, it worked very smooth.

Anyone has idea what I did wrong to make this issue?

ipad mini crash
 
 
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