IOS7 activation Error Why IOS7 activation failure Reason analysis

In fact, this problem is caused by the wrong operation, this situation is the upgrade is caused by shift+ recovery, the correct way is to shift+ check the update.

Now please enter DUF mode, then use itunes to restore to iOS6.1.3, then shift+ check update upgrade iOS7

Here are two ways to enter the DFU mode:

: Normal recovery DFU, this recovery method is the most common way to restore the iphone firmware in a general unlock tutorial.

1. Connect the iphone to the computer and then turn the iphone off

2. Simultaneously hold down the switch machine key and the home key

3. When you see the white Apple logo, please release the switch button, and continue to hold down the home button.

4. Open itunes and wait for it to prompt you for recovery mode, you can click "Restore", itunes back to start recovery.

: Black screen Restoration DFU (personal name)

1. Connect the iphone to the computer with a USB cable, and then you will hear the sound of the computer connected successfully.

2. Now please turn off the iphone first, then you will hear the computer is not connected to the successful sound of the message.

3. Please hold down the switch machine key and the home button at the same time, continue to the first 10 seconds, please release the key immediately, and continue to hold down the home key.

4. itunes starts automatically at this time and prompts you for a recovery mode (the iphone will remain in a black screen state). Then you can click "Restore" to recover.

There's another way to recover .

1 First let the iphone go into recovery mode. Use a USB cable to connect your phone to your computer and open the itunes software on your computer, holding down the iOS device's power button for 3 seconds. Then do not release the power button, and then hold down the home key, while holding down two keys for 10 seconds The device will be black screen.

2 Release the power button at this time, the home key continues to press and hold until the itunes software prompts "detects a recovery-mode iOS device" release, click "OK" button.

3 What we have to do now is to get the device back to the IOS6 latest firmware. Hold down the SHIFT key on your computer's keyboard and click the "Restore iphone" button on the itunes software. Click to open the old version of the firmware we prepared beforehand, here is the iOS 5.1.1.

4 after successfully restoring the iOS 6 firmware, reopen the itunes software and connect to the device. Press the "Shift" key on your computer's keyboard and click the "Check for Updates" button. Click to open the downloaded iOS 7 firmware.

5 after itunes updates iOS 7 firmware to the iphone device, the iOS 7 system can be successfully used.

Personal Summary

The current iOS 7 system is compatible with iphone 4/4S/5 and ipad 2/3/4 and other types of Apple iOS devices, if the upgrade iOS 7 can not be activated, it is generally because your iOS device has escaped before. Apple has long stated that jailbreak iOS devices cannot upgrade the latest iOS 7 system, and that it is also a special reminder in the article "IOS7 Test Brush Tutorial", which was written before the computer Pepsi Web.

Detours words, not much said, I believe that we are most concerned about the IOS7 can not activate how to do?

The iOS7 of an iphone or ipad that has escaped is definitely not active, and you don't have to worry about how to activate iOS 7, and the solution is to drop the iphone or ipad device back into iOS 6. The downgrade here will drop to the latest version of iOS 6. Usually the iphone 5 drops to iOS 6.1.4 and the iphone 4S drops to iOS 6.1.3, and other devices like