iOS 9 available on September 16: 5 Considerations your must to know before upgrade to iOS 9

Since June 10 Apple released iOS 9 developer preview version, test iOS 9 has lasted three months, and then on the morning of the new fall conference, Apple announced iOS 9 official version will be global in September 16 Synchronization updates! Before you decide to update, take a look at these notes!

1. Want to upgrade, not necessarily to successfully upgrade your iPhone!

From the model point of view Apple conference to announce, iPhone 4s (or more), iPad 2 (or more), Air whole series, mini whole series there iTouch 5 generations before they can upgrade to iOS 9! iPhone 4 users are in the toilet crying halo! ITouch and iPad 1 and other users in the next toilet faint cry!

2. Want to escape, want to try the new system? No!

I will not speak iOS 8.4.1 jailbreak 8.4 Emergency plugging loopholes for jailbreak iOS 9 also will not appear too fast! So students do not have to worry upgrade jailbreak 9! Then a little more than a few days and so on!

3.iOS 9 capacity, although small, the deletion of the application must also be deleted!

iOS 9 installation space required for iOS 8 is nearly 70 percent smaller, but still have 1.3GB! Are still using 8 GB version of the iPhone's user laughed and cried! Please take this opportunity to quickly put you those (bad shot) photographs, (heard countless times) music, (two months have not touched once) delete delete delete all applications!

4. Upgrade risk, and quickly to backup your data!

Whether it is not with iTunes upgrades are likely halfway interruption, even blue! So first backup once, you can boldly brush iOS 9 went!

Tips: Before upgrading your iPhone, iPad to iOS 9,you must to backup all data from ios devices.If you bakcup iPhone data with iTunes,it's very slowly and it can't help you backup iPhone contacts and text messages. Here,we recommend you use this iOS Data Manager to backup everything from iPhone, iPad to computer,including contacts, text messages, photos, videos,notes,ect.

Read more:

Backup iPhone iPad data to computer

5. Critical moment, how can your iPhone without electricity?

The firmware is downloaded, and is being upgraded, popping it, power is not enough, interrupted, and white apple! If you happen not to back up, every minute faint cry in the dressing room!

iPhone must ensure adequate power during the upgrade process! Because the installation process is very power-hungry! But with a data cable connection iTunes upgrade you do not have this pressure it!

Read more: how to upgrade iPhone iPad to iOS 9

Tips: If you forgot backuped your iPhone data after update the ios device to iOS 9,it may erase all contents on your iPhone, iPad.Once failed update your iPhone, iPad to iOS 9,it might cause lost data on iPhone, iPad after upgrading to iOS 9.However,some people may ask how to restore lost iPhone, iPad data after update to iOS 9? Please read more as below:

Recover lost data from iPhone after update to iOS 9

Recover lost data from iPad after update to iOS 9

Apple iPhone6 / iPhone 6 Plus Upgrade iOS9 installation tutorial

Apple iOS9 Beta Developer Preview one, naturally there will be "mouse" early adopters of the new version of the system, and here we introduce an apple iPhone6 ​​/ 6 Plus Upgrade iOS9 installation tutorial, you can refer to this iOS9 beta installation tutorial, the first to experience iOS9 The new functions of the system.

tutorial to update iPhone to iOS 9

Tips: You may want to know What to do Ready Upgrading iPhone to iOS 9

Apple iPhone6 ​​/ 6 Plus Upgrade iOS9 installation tutorial

1, the preparatory work

iOS9 Beta version of the installation process and before iOS8 no different, generally speaking, is to download iOS9 Beta test version of the firmware, which brush into the iPhone, iPad devices can be. However, before you upgrade iOS9 beta, if possible, to ensure that their equipment has been added to the developer the opportunity to avoid the situation encountered after the upgrade can not be activated.

You can upgrade iOS9 equipment:
· IPhone4s, iPhone5, iPhone5c, iPhone5s, iPhone6, iPhone6 ​​Plus;
· The fifth-generation iPod touch;
· IPad2, Retina screen iPad (ie iPad3 and iPad4), iPad Air, iPad mini, Retina screen iPad mini (ie iPad mini2), iPad mini3, iPad Air2

2, download iOS9 Beta
Find your device model (body back), go iOS9 Beta test version of the firmware download Address Book, download the corresponding firmware .ipsw file decompression to obtain prevail.

3, using iTunes for the iPhone / iPad upgrade iOS9 Beta
On the desktop side open iTunes, press the "Shift + Update" will be selected brush into the firmware, the following action to Apple just fine.

4, Activate iPhone / iPad
After upgrading Ends iOS9 beta, boot into the system need to follow the wizard to set it. If it is found the device can not be activated, you have to look at their equipment is not in the list of equipment among the developers.
iOS9 system did not bring major changes in the interface, and more focus on improving software functionality, security, operational stability, endurance and intelligence above. iOS9 system allows us to see a more intelligent Siri and Spotlight search, new fonts, News and memo applications, low-power mode, the map Transit service, designed for iPad born split-screen multitasking and other highlights.

Read more: How To Download And Install iOS 9/iOS 9 Beta On iPhone