1, we found in the Apple 5s phone "Cydia" into the "management" and then find the "package" Here we find "IPA patch (Appsync for IOS7)" and then remove it.
2, then the device connected to the computer side of the PP assistant "click here to download", click on the device bar file-file system (Jailbreak)--/var/mobile/library/caches/will be inside the com.apple.mobile.installation.plist and Com.apple.launchservices-054.csstore files are removed, reboot the device. (If you only find Com.apple.mobile.installation.plist or com.apple.launchservices-054.csstore a file, restart it after you delete it.) )
3, then we will open Cydia in the mobile phone add PP Assistant source (source address: apt.25pp.com) After the installation of IPA supplement so you will find that the installation software will not flash back oh.
Friendly tips, if there is a flash-back we can try to install a PP assistant and then the phone and computer connection using the PP Assistant to repair the flashback function to solve your problem oh.