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List of the catalog of this article:

• 1, How to turn off the automatic upgrade of Apple 4s system
• 2, iPhone4S Upgrade iOS8.1 Tutorial
• 3, Apple 4s version is too low How to flash the system
• 4 , How to upgrade the version of Apple 4s?
• 5
  、 How to update the system after Apple 4s jailbreak?
• 6, How to solve iphone4s update failure

How to turn off the automatic upgrade of the Apple 4s system

The prompt to cancel the iPhone system update, that is, completely delete the update cache file by erasing the system content. The reason why the system automatically downloads and updates upgrades system files is that the function of automatically downloading and updating applications is turned on, so when the device is connected to the network, it will automatically download the updater file in the background.

Enter the "Settings" of the iPhone, then click "General", and then enter the iTunes Store and App Store. In "Automatically Downloaded Items", turn off "Update".

iPhone shuts down the systemUpdate prompt, first of all, you need to delete the previously downloaded system update file, and then turn off the function of automatically downloading the update file in the background.

iPhone4S Upgrade iOS8.1 Tutorial

1. iPhone4s can now be upgraded to IOS1. This upgrade accelerates the performance of 4S, so upgrade It is very necessary to open the settings option to find the general. Select the software update option in the general option to check whether there is an update. The system will automatically check it. In this process, you need to maintain the network status.

2. Method 2: Use iTunes to upgrade. In addition to OTA upgrade, users can also choose to use iTunes to upgrade the system.This method is faster and generally does not cause errors and data loss, but it needs to be connected to the iPhone through the computer, which is a little more troublesome to operate.

3. iOS devices can be upgraded through third-party assistant software such as Ace Assistant. The following is an example of upgrading the iPhone system with Ace Assistant.

How to flash the system if the Apple 4s version is too low

Connect the iPhone to the computer and start iTunes. Press and hold the power key and the Home button and wait for the Apple logo to appear on the screen. Release the power button, but continue to hold down the Home button until the "Connect to iTunes" icon appears on the screen.

s It's like this recently. I have a mobile phone that is 4s. That day, the update found that many software could not be opened after installation, and then prompted that the version was too low. There was no other way but to use the system upgrade.

iphone is turned off, connect the computer with a data cable, and open the iTunes software of the computer. Press and hold the Power key for 2 seconds. When the Power key is not released, press the Home button for 10 seconds to force the shutdown.Don't release the Home button, press the Power button once.

OTA upgrade: Open the mobile phone's settings-general-software update, select the update system, pay attention to the need to be completed in the wifi situation, and keep the battery at about 60%.

How to upgrade the version of Apple 4s?

The computer connection upgrade system requires you to use a computer and connect it to the computer's USB port with a data cable.

Method 1: Use OTA to upgrade OTA (Over -The -Air), that is, "air upgrade", which refers to updating the system directly through Wi-Fi network connection. This upgrade method is simple to operate. Generally, there will be no errors and data loss, but the update speed will be relatively slow.

There are two ways to upgrade the iOS version: OTA upgrade: download and install system updates directly through the wireless network.

If there is a problem during the upgrade process, you can ask for help through Apple's official website or Apple customer service. The above is a detailed tutorial on upgrading Apple 4s to ios7. I hope it can be helpful to everyone.

Next, we need to download the corresponding firmware. Firmware is an upgrade package of the mobile phone operating system and an important basis for flashing. Various versions of firmware can be downloaded on the website http://. You need to select the corresponding version and model when downloading.

How to update the system after Apple 4s jailbreak?

After jailbreakThe mobile phone cannot be upgraded directly through the mobile phone or iTunes, so you always fail to update in General. You need to download the IOS 0 firmware corresponding to the mobile phone first. Connect the mobile phone to the computer iTunes and enter the DFU mode to flash the phone.

one. Upgrade iTunes to the latest version. II. Link the iPhone4S to the computer and open iTunes. In the backup section, select "Local Computer", and then click the "Backup Now" button. The system will automatically back up the photos, contacts, applications and other data in the iPhone to the computer.

Back up with ITUNS first, then enter the recovery mode and click Restore, and then restore the backup. Upgrade the locked version. If you don't understand, please enter my store. There is my QQ in the store introduction. Add me to chat in detail.

Before upgrading to the official version of iOS2, it should be noted that Apple may turn off iOS2 service verification within the next 72 hours. After turning off the service verification, it will no longer be downgraded from iOS 3 to iOS2.

How to solve the failure of iphone4s update

1. Connect the iPhone to the computer, and then turn off the iPhone. At the same time, press and hold the top switch key of the iPhone and ho Me key When you see the white Apple logo, please release the switch button and continue to hold down the home button.

2. Step 1: After shutting down, press and hold the HOME button and the shutdown button at the top for 10 seconds at the same time. Step 2: Turn the screen downAfter that, release the top shutdown key and continue to hold down the HOME button until the screen of iTunes connection appears on the screen. Step 3: Enter the recovery mode, plug in the data cable to open iTunes, and select Update to be ok.

3. Isn't it abnormal? It takes at least 1 hour to update the system, and during this time, such pages are displayed.

4. If the update fails on the mobile phone, another plan is to use iTunes on the computer to upgrade. If it still fails, you have to flash the phone in recovery mode to get the latest iOS 9.