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List of the table of contents of this article:

• 1,Pharma R&D materials HS code verification How to restore the iPhone system after updating?
• 2, iPhone System Downgrade Recovery Notes
• 3, The win system has been installed on the Apple notebook. How to restore the Apple system?
• 4, iPhone Restore Factory Settings Steps
• 5, How to restore the system on iPhone

How to restore after the iPhone system is updated?

The way to restore after the iPhone system update is as follows: turn on the phone and select the setting option. In the setting interface, select the general option. In the general interface, select the restore option. In the restore interface, select Erase All Content and Setting Options. After entering the password, the mobile phone will automatically return to the state when it was not updated.

Connect the mobile phone to the computer, open iTunes, and the software will automatically detect the mobile phone and display it in the device bar, as shown in the figure. JUST CLICK ON THE IPHONE. After opening, it will be displayed to update or restore. Click Restore.

First of all, we can try oneNext, press the "Home button and the power button" of the iPhone at the same time until the screen is black. Then we press the power button to turn it on to see if we can enter the system and the main screen normally.

Notes on iPhone system downgrade recovery

orYou can try to restore it if you have made a backup before upgrading the system, but it is not recommended to operate it by yourself, which is risky. Charge reminder: Because the system belongs to the software part, there may be a charge for the after-sales downgrade system. Please pay attention here.

The system will not be downgraded after restoring the factory settings. After restoring the factory settings of the iPhone, the system will not be downgraded.

Downgrade steps Start iTunes: Make sure that the latest version of iTunes has been installed on your computer and start it. Connect your mobile phone: Use a data cable to connect your mobile phone to your computer and make sure that iTunes can recognize your mobile phone.

First of all, be sure to back up the important data in the mobile phone before downgrading. Because the downgrade operation will restore the mobile phone to the old version of the system, which means that all data will be cleared.Therefore, backing up data is a very important step. Backup can be done through iCloud or iTunes.

The win system has been installed on the Apple notebook. How to restore the Apple system?

First, turn on the computer and press "Command+R" on the keyboard. Then click to open "Disk Utility" in the pop-up window. Then click to open "erase" in the pop-up window. Then click to open the sector in the upper right corner of the pop-up window.

Take the Apple computer MacBookPro and MacOSX system as an example. After installing the Windows system, restore the original system.The method is as follows: First, restart the computer. When restarting, press and hold "Command plus R" or "Command plus Option plus R" to enter the OSX utility.

Press and hold Command+R or Command+Option+R to enter the OS X utility when restarting the Mac computer. Select Disk Utility on the OS X utility interface to erase the stored records on the disk. After the disk is successfully restored, select the option to reinstall OS X.

Open BootCamp in the lower right corner of the Windows 10 system desktop. If it is not displayed, the menu has been folded. Click the small gray icon in the lower right corner to find it in the list after clicking. If the function is not in the lower right corner, open this computer, enter the control panel, and then find and open Boot Camp.

Press the power button on the keyboard on the Apple laptop to turn on the computer. The logo of the Apple computer appears on the screen. After waiting for the laptop to start up, you can see that there are two operating systems on the screen. CLICK WHAT YOU NEED TO ENTER THE WINDOWS SYSTEM.

iPhone factory reset steps

Please press the power button to turn on the power first. When the Apple logo appears on the screen, do not release the power button. The black screen is followed by pressing and holding the Home button on the home screen until the screen goes black.

Method 1: Restore iPhone to factory settings Click on iPhone [Settings] - [General] - [Transfer or Restore iPhone]- [Erase all content and settings], note that you can choose to click [Erase All Content and Settings], not [Restore].

Click General and click [General] Settings in the settings. As shown in the figure below. Click Restore and click the [Restore] option in the menu. As shown in the figure below. Click the option and click the [Restore All Settings] option. As shown in the figure below. Enter the password and verify your identity to restore the factory settings.

How to restore the system on iPhone

After downloading the ios installation package, open iTunes. After the mobile phone icon appears, press and hold shift+restore at the same time, and then select your installation package. It will be fine in a while.

First of all, we can try it first.Press the "Home button and the power button" of the iPhone at the same time until the screen is black. Then we press the power button to turn it on to see if we can enter the system and the main screen normally.

Before starting, it should be noted that the reset system mentioned here is directly used on the iPhone, that is to say, it uses the system's own set-and restore function. If your iPhone has been jailbroken, please do not use this method to reset it.

If the original system has been backed up, restore it directly. Open iTunes, hold down Shift+ and click "Restore iPhone", and wait for the recovery to complete. How to downgrade the official version of ios01 Download the latest version of ios5 firmware on the official website.Link iTunes and back up mobile phone data.

Finally, turn on iTunes and wait for the prompt to restore mode. Press and hold the shift key on the keyboard, click "Restore", and select the corresponding firmware to restore. iPhone: iPhone is Apple Inc. Release a series of mobile phones equipped with iOS operating system.

It can be downloaded through ios system or iTunes. To restore to the previous system, there are the following 3 ways: mobile phone self-recovery: open Settings - General - Restore, select to erase all content and settings, and the mobile phone will be automatically restored.