How to upgrade Apple 4? Is it OK to upgrade the Apple 4 to the highest version?

1. Prepare in advance.

A computer, 1 iPhone (don't throw bricks) and 1 data cable (preferably the original cable, if you have a friend who uses a TB cable to upgrade the firmware cup).

2. Stable power (half-way power-off cups).

3. Stay away from small pot friends (press the power button of the computer indiscriminately).

4. Make a good backup, especially the address book, which is often important.

2. Upgrade steps.

There are three ways: 1. Upgrade the mobile phone directly, turn on the wifi, click Settings - General - Software Update, and ignore the following versions;

2. Connect your phone to the computer to open iTunes, tap your phone, click Update (keep all settings, software and **, etc.), or click Restore (all settings, contacts, software, etc. disappear, clean and innocent);

3. Network firmware. See your model **, after the next step, connect the phone to the computer, click on iTunes, hold down shift and click on the phone to update or restore, the selection interface will appear, click on the good firmware (the next steps are the same as method 2 above).

3. Precautions.

4. The whole upgrade process takes about 8 minutes, restart the phone 3 times, don't be nervous.

5. If you want to upgrade losslessly, click "Update", do not click "Restore".

Is that okay?

In the case of WiFi, the system will automatically prompt you to upgrade.

Due to the old iPhone 4 model, iOS 8 is not supported at present. The system can be upgraded up to a version. But after upgrading to this version, the phone will be very stuck, so I personally recommend that your iphone4 be upgraded to the highest level, so that the user experience will be better.

6 (Preview).

7iOS 7 brings a new look to this operating system, which is already a bit old. In addition to the youthful color scheme and UI, there are also a lot of changes in this system.

Appearance. iOS 7 is being developed under the leadership of Jony Ive. He boldly eschewed the style of the Steve Jobs era and brought a major visual change to the system.

The skeuomorphism, textures, and glittering icons are all gone, and the overall style of iOS 7 is more modern and flat.

Control Center. Another example borrowed from Android. Users no longer have to go into the settings app to adjust the device's functions, and now they can simply swipe up from the bottom of the screen to pull out the control center with many quick switches, such as volume and brightness adjustments, Wi-Fi and Bluetooth Do Not Disturb switches.

itunes radio。This ** streaming service is Apple's attempt to challenge Spotify and Rdio. It allows users to choose songs based on their needs, but the service is more about stations, stations, and genres around songs, artists, and genres.

Camera and **. The new camera app is no longer the "point-and-shoot" app it used to be, and users can adjust some of the shooting parameters while using the built-in filters. The app also adds a sorting function of events or locations, allowing users to organize their own photos more intuitively.

Multitasking. This feature has been greatly upgraded in iOS 7. Double-tapping the home button will open a new multitasking interface that will show the icon and thumbnail of each open app, and the way to close the app is even easier than swiping up by tapping on the app's thumbnail.