Apple 4/4S/5 How to install IOS7?IOS7 how to upgrade

How to install IOS7

Before starting the upgrade, please back up, because the iOS 7 official version of the Open, iOS 6.1.3 and 6.1.4 verification will be closed (unable to downgrade). There are two ways to backup:

1, back to the computer, that is, connect the device, select "Sync" will be in the computer backup, the data stored in the C-disk itunes package.

2, using icloud Backup to the cloud database. After you connect the device with itunes, select the device name, then go to "Summary", select "Back up to icloud" in the backup option, and then select Apply.

There are three different ways to upgrade iOS 7:

1, OTA update
In other words, as long as your device is on the iOS 7 upgrade list, you can find "settings" on the device-"general"-"Software Update", choose iOS 7, and then the device will be downloaded and installed online. Recommended to use Wi-Fi, it is necessary to note that in the data network status of the App Store download limit to upgrade to 100MB.
2. Use itunes to update equipment
Apple has released itunes 11.1 today, the user downloads, in "Summary" "version", select "Check Update", will go to download the iOS 7 firmware, and install.
3, manually download the iOS 7 firmware, and then update with itunes.
Connect the device to the latest version of itunes (address here), then manually download the iOS 7 firmware, then run itunes, hold down SHIFT, and click Restore to select the corresponding version of iOS 7 firmware to recover.

What to do if the IOS7 installation fails

What about iOS7 installation failure? Many people can not wait to download iOS7, but the upgrade is found that the installation failed, which is very depressing, following the small set together to learn the next iOS7 installation failure to solve the tutorial.
1603,1604 Error
Is that your Apple Mobile device service is not turned on. Right-click on my Computer-manage-services and applications-services, then locate and then on the right side of the Apple Mobile Device, and then point to start the service and restart the service.
3194 Error
The Hosts file in c:/windows/system32/drivers/etc/to open with Notepad, delete 74.208.105.171gs.apple.com or 74.208.10.249 Gs.apple.com and so on, and then open the itunes connection USB can be.
A workaround was not found for the 1121,2003 error.
The following is an official list of errors: (again, the location error is not an activation issue, this unknown error has many causes, may be a computer system problem, or you may have installed other software incompatible issues.) )
Error code resolution
Unknown error (+-) 1 not in degraded mode replace the USB jack, preferably behind the chassis; reboot the computer
Unknown error 6 Not in degraded mode replace USB jack, preferably behind chassis; reboot computer
Unknown error 1013 Reboot the computer, replace the computer, reload the system if it has been in the recovery mode: XP users can use Ibrickr to let the iphone out of recovery mode; The Mac user uses independence.
Unknown error 1015 Reboot the computer, replace the computer, reload the system if it has been in the recovery mode: XP users can use Ibrickr to let the iphone out of recovery mode; The Mac user uses independence.
Unknown error 1417 replace the USB jack with the rear of the chassis
Unknown error 1602 reboot computer, replace computer reload system
Unknown error 1603 reboot computer, replace computer reload system
Unknown error 1604 reboot computer, replace computer reload system
Unknown error-35, unknown error-50 delete storm movie, QuickTime, itunes, then reload itunes
Unknown error -9800,-9815,-9814 set the correct date and reboot the computer
Unknown error 1413 reboot computer; replace USB jack; Reload system
Unknown error 1415 reboot computer; replace USB jack; Reload system
Unknown error 1417 reboot computer; replace USB jack; Reload system
Unknown error 1418 reboot computer; replace USB jack; Reload system
Unknown error 1428 reboot computer; replace USB jack; Reload system
Unknown error (0X666D743F)

IOS7 How the installation package is deleted

In ITunes, storage space shows that the "Other" column has more than 1G of content.

Green tea in this small series recommended that you use a special cleaning iPhone garbage software called Phoneclean, installation method is very simple, has been the next step.

After installation, the IPhone with a data cable to connect to the computer, and then start Phoneclean, software default is the English interface, click on the upper left corner of the menu, select the language, Simplified Chinese.

The software will show how much space the IPhone currently uses, how much space is left, some options below, what junk files need to be cleaned up (recommended by default), and then click on the scan below.

Because of the size of the phone and the number of applications to install the relationship, the time required is not the same, please be patient, after a few minutes of scanning results out, you can see how many cached files.

In the process of cleaning up, you can see the top of the show is cleaning up where the rubbish, such as here on the QQ a lot of garbage files cleaned up.

Finally prompted to clean up, the phone released 334MB space.