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List of contents of this article:

• 1, How to flash iPhone 4s
• 2. How to flash Apple 4s without a computer
• 3, How to flash Apple 4s?
• 4、How to flash Apple 4s to upgrade the version

How to flash iPhone 4s

1. Connect the iPhone to the computer with a USB cable, and then you will hear the prompt sound that the computer has been successfully connected. Now please turn off the iPhone first, and then you will hear the prompt that the computer is not connected successfully.

2. Connect the mobile phone to the computer and open iTunes. Select the icon of your mobile phone and click "Restore iPhone" on the overview page. Select the downloaded firmware in the pop-up window and wait for the flash to complete. Wireless flash: download the jailbreak software and install it on the computer.

3. Step 1: Download a reliable flash program on Apple's official website or third-party softwareDownload the flash program in the software center. It is not recommended to download it on an insecure website to avoid some malware and other security problems.

4. Well, let's explain in detail how to flash iPhone 4s. Step 1: Backup data. Before flashing, the most important step is to back up your mobile phone data so that it can be easily restored after flashing. Backup can be done using iTunes or iCloud.

5. Jailbroken users delete the mobile phone directory/private/var/keychains/keychain-db file and restart the iphone. If there is no jailbreak, you can only flash the machine. It is best to back up all the software and other resources before flashing, otherwise it will all be lost after flashing.Turn off the iPhone or tablet (shut down).

6. The specific steps are as follows: Step 1 Connect the mobile phone and the computer. When the mobile phone is off, use a data cable to connect the mobile phone to the computer. Step 2 Press the volume up and down key and the power key, then press the side volume up key, and then press the volume down key for a long time and press the volume down key plus the power button without let go.

How to flash Apple 4s without a computer

Method 1: Use the recovery mode of iPhone, the steps are as follows: First, install iTunes on the computer. Then start iTunes.

OTA upgrade is a system upgrade method officially launched by Apple, which allows users to upgrade the system directly through mobile phones without connecting to a computer.Flashing can also be done in this way, but it needs to be carried out under some prerequisites.

Back up your data. Before flashing, you need to back up your mobile phone data, because flashing will empty your mobile phone data. You can back up through iCloud or iTunes. Download the flash tool. You need to download a flash tool, such as Redsn0w or Pangu. Restore the mobile phone to factory settings.

How to flash Apple 4s?

The steps to flash Apple 4s are as follows: First, download and open "Apple Flash Assistant". Then download the iPhone driver and install it, or you can install iTunes (with driver) directly. Then open the software, and the interface is as follows. It must be backed up first, which is very important. Click to back up SHSH.

Connect the mobile phone to the computer and open iTunes. Select the icon of your mobile phone and click "Restore iPhone" on the overview page. Select the downloaded firmware in the pop-up window and wait for the flash to complete. Wireless flash: download the jailbreak software and install it on the computer.

Well, let's explain in detail how to flash iPhone 4s. Step 1: Backup data. Before flashing, the most important step is to back up your mobile phone data so that it can be easily restored after flashing. Backup can be done using iTunes or iCloud.

How to flash Apple 4s to upgrade the version

1. Secondly, you need to prepare relevant tools and software. Commonly used flash tools include iTunes, 3uTools, PP Assistant, etc. Before using these tools, you need to make sure that the relevant drivers and software have been installed on your computer. Next, we need to download the corresponding firmware.

2. 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.

3. Step 1 Connect the mobile phone and the computer. When the mobile phone is shut off, use the data cable to connect the mobile phone to the computer. Step 2 Press the volume up and down key and the power key, then press the side volume up key, and then press the volume down key for a long time and press the volume down key plus the power button without let go.

4. iPhone 4s can upgrade ios5. The specific steps are as follows: run the assistant and enter more functions - backup and restore can back up data with one click. Then switch to the [Jailbreak] interface and click to enter the flash.

5. Turn off the iPad and connect it to the computer USB, and open iTunes. Press and hold the POWER key and the HOME key at the same time. When you see the white Apple logo, release the POWER key and continue to hold down the HOME key.