1) If you are installing a cracked version of IPA, please confirm whether the Appsync for iOS patch has been installed on your phone; 2) If you are installing a genuine IPA, please explain the first thing When all software in iOS wants to run, it will check whether the software has been authorized. Only authorized software will be allowed to run, otherwise there will be a problem of exiting as soon as it is run. Currently, using the synchronization assistant to install IPA can only simply install the software into your device. It cannot also help you transfer the authorization information of the iTunes account to which the software belongs to your device. If you use the synchronization assistant to install IPA and encounter the problem that the software exits after a flash, you can follow any of the methods listed below to transfer the authorization information of the iTunes account to which the software belongs to your device: ① In On your mobile phone, use the iTunes account to which the software belongs to download a free or paid software from the App Store. ② On your computer, use iTunes to synchronize any other free or paid software purchased with the same account to your device.

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