IPHONE4S mobile phone upgrade iOS7.1.2 jailbreak after the boot screen is spent how to repair?

Method One, delete system files

The following directory can be deleted by using tools such as PP Assistant:

* Delete: Com.apple.crash_mover.plist in the/system/library/launchdaemons directory

Method Two, installs the plug-in Respringcachefix

Free Source Address: http://rpetri.ch/repo/

System compatible: IOS 6.1 and above

Free Download: Search installation "respringcachefix" in Cydia

Respringcachefix Settings and use

Respringcachefix without any settings, after installation restart can be used, each logoff boot automatically clears temporary files.

Friendly tips, described above to delete a file I think this file can not be deleted, we just put the file name on it, so the next time if you use this file we just need to modify the filename can restore a very good backup method Oh.