Apple iphone4/4s upgrades iOS7 causes software games to be unusable

Problem phenomenon

My iphone4,9 month 28th upgraded to iOS7, there are some applications can not be used normally, October 10, mobile phone panic, forced shutdown after the recovery state, through the itune the latest version of recovery, reported 4013 errors.

Solutions

First, itunes should not be able to pass the system data to the handset, iOS7 the current bug many and iphone4 compatibility is poor, but causes the system to malfunction.
Second, at present if you upgrade to the iOS7, is unable to downgrade, Apple has turned off iOS7 downgrade to the iOS 6.1.3/6.1.4 two system verification!
Third, it is recommended that you remove all game applications via itunes, turn off the icloud service, and try again.