How to initialize (reset) the iPhone and precautions -Preparation is important!

This article describes how to initialize (reset) the iPhone.If you buy a new iPhone and trade in, sell it, or transfer it to another family or acquaintance, you can return it to a state of purchasing a new iPhone (factory shipment).increase.

What is the initialization of the iPhone?

The initialization of the iPhone is the work of erasing all data, such as photos, videos, contacts, applications, memos, music, etc. included in the iPhone, and returned to the state when purchasing a new iPhone (factory shipment).say.There is another way of saying "reset".There is no need to initialize when using the iPhone normally.So when do you need to initialize?

When trade -in / sale / transfer by model change

If you let go of the iPhone and give it to another person's hands, you need to initialize and return to the factory shipment to prevent leakage of personal information.For example, when you trade in when changing a model, if you sell it at a purchase shop, a flea market app, an online auction, or transfer to a family or acquaintance, initialize it.

Even when you can't solve the problem, such as heavy iPhone movements

If you have an unknown cause, such as "the application of the application is heavy", "the communication is unstable", or "suddenly shutting down", it may be eliminated by initializing the iPhone.

[Preparation in advance] Check and execute before initializing the iPhone

The procedure to initialize the iPhone is very easy, but there are some things to prepare and check before actually initializing.If you neglect these and initialize them, it will be troublesome, so don't forget to do the following six tasks.

For each item, we will explain specific procedures while adding a link to detailed information.

Let the iPhone backup

When the iPhone is initialized, all data such as photos, contacts, and emails will disappear.So, if you keep the "backup" of the iPhone before initializing, it will be very easy to transfer and take over the newly replaced iPhone, and restore the iPhone with a problem.

There are two ways to back up your iPhone: "how to use iCloud" and "Mac or Windows PC".If you don't have a personal computer, you can only back up to iCloud, but the capacity that can use iCloud for free is up to 5GB.I don't think many people have enough capacity, but it is a quick solution to upgrade the plan for a fee.The iCloud contract can be returned to a free plan at any time.

For detailed procedures to back up your iPhone, see the following related article.

[Related article] How to save iPhone backups to iCloud or PC

LINE backup and prepare to take over

To back up the talk history of LINE, it is necessary to do it on the LINE app "Home" tab → "Settings" → "Talk" → "Backup of Talk".In addition, if the phone number changes depending on the replacement of a smartphone, it is important to note that unless you take over in advance, you will not be able to take over your account.See the LINE official guide page "Ozenjin Guide" for how to take over LINE.

[Related article] How to change the LINE talk history and take over, from backup to restoration [iPhone and Android]

Turn off "Search for iPhone"

The next thing to do is to turn off "Search for iPhone".If you do not turn off "Search for iPhone" when you trade in, sell, or transfer, you may be able to use "Activation Lock" when you reach a new user, and you may not be able to use it.I have.Don't forget to turn it off.

The procedure to turn off "Search for iPhone" is as follows.For more details, please refer to the following related articles.

[Related article] How to turn off "Search for iPhone" -Can explains the situation to be turned off

Unlock the Apple Watch pairing

If you want to change the model to a new iPhone, release the pairing with Apple Watch.If you have a traffic IC card (such as Suica) in the "Wallet" app on the Apple Watch, delete the transportation IC card from the Apple Watch in advance before canceling the pairing.

To cancel the Apple Watch pairing, launch the iPhone "Watch" app with Apple Watch and iPhone approaching each other.After that, proceed with the following steps.

When the Apple Watch pairing is canceled, Apple Watch is initialized to the factory shipment, and the Apple Watch data is automatically backed up to the iPhone.If you back up your iPhone to iCloud or PC, the data includes Apple Watch data.In other words, setting a new iPhone or restoring the iPhone from the backup will also restore the latest Apple Watch data.

Delete if Suica is linked to Apple Pay

If the transportation IC card "Suica" is linked to Apple Pay, delete Suica from the "Wallet" app before letting go of the iPhone.If you leave Suica, you will not be able to migrate Suica to the new iPhone.To delete Suica, open the Wallet app from the home screen, tap Suica from the registered card to perform the following operations.

When Suica is deleted from the iPhone, the data is evacuated to the server.After that, when you launch the new iPhone "Wallet" app and reset Suica, the Suica information stored on the server will be imported.If you forget to delete it, depending on the conditions, you may be able to migrate, so access and contact the mobile Suica support portal.

Turn off "IMESSAGE" and "FACETIME"

If you change the model from an iPhone to an Android smartphone, SMS and text messages may not be reached.To avoid this, remove the registration of "IMESSAGE" and "FACETIME" before initializing the iPhone.The procedure after opening the "Settings" app is as follows.

[Subject of article] Procedure to initialize the iPhone

Here is the initialization procedure of the iPhone, which is the subject of the article.Initialization of iPhone includes "how to do it alone" and "how to use a personal computer".Both procedures are very simple, but once you execute them, you can't cancel, so be careful after checking the points listed above.

Repeat precautions."Remove the backup", "Prepare LINE to take over", "Find an iPhone", "Unlock the Apple Watch", "Delete Suica from the Wallet app", "Turn iMessage and FaceTime"is.

How to initialize the iPhone alone (do not use a personal computer)

To initialize the iPhone alone without using a personal computer, open the "Settings" app, proceed in "General"> "Reset", and tap "All Content and Settings".You will be asked if you want to execute the iCloud backup before erasing, so if you have already backed up, tap "Erase now".The entire process of work is explained below.

How to initialize your iPhone using a personal computer

Make sure that the Mac or Windows PC OS is the latest version, and that the latest version of iTunes is installed for Windows PCs.On a Mac after MacOS Catalina, "Finder" is opened, and on the Mac or Windows PC, "iTunes" is opened, and the initialized iPhone is connected with a Lightning cable.

It is a bit confusing to click the "Restore iPhone" button to initialize, but there is no other process that seems to be puzzled.Click the "Restore" button to delete all the iPhone data, the latest version of iOS is installed, the iPhone restarts and returns to the factory shipment.