How To Factory Reset Your iPhone Without Losing Everything
A factory reset returns an iPhone to its original setup state by deleting personal data, accounts, settings, apps, and stored content. It is useful before selling or giving away a phone, when troubleshooting persistent software problems, or when starting fresh after years of accumulated files.
The reset itself cannot preserve your data. The safe approach is to create a current backup, check that important information has synced, and then erase the device. Afterward, you can restore the backup to the same iPhone or transfer it to another Apple device.
This process is easier when you separate three tasks: protecting your information, preparing the phone, and erasing it. A few minutes of checking can prevent the most common mistakes, including missing photos, lost passwords, inaccessible two-factor authentication codes, and an eSIM that disappears unexpectedly.
What A Factory Reset Actually Removes
Choosing “Erase All Content and Settings” deletes photos, messages, contacts stored only on the phone, downloaded apps, Apple Pay cards, device settings, and accounts signed into the iPhone. It also removes the lock screen passcode and returns the software to the setup screen.
A reset does not usually delete information already synchronized with iCloud. For example, contacts, calendars, iCloud Photos, Notes, and iCloud Drive files should reappear when you sign in with the same Apple Account, provided syncing had completed before the erase. Data from third-party services follows that service’s own backup and login rules.
The important distinction is between synced data and a device backup. Syncing keeps certain categories available across devices, while an iCloud or computer backup captures a broader snapshot of the phone. App data, settings, Home Screen arrangements, and some messages may depend on that backup rather than simple iCloud synchronization.
Make A Backup You Can Actually Restore
For most people, an iCloud backup is the simplest option. Connect the iPhone to Wi-Fi, open Settings, tap your name, choose iCloud, and select iCloud Backup. Tap “Back Up Now,” then wait for the process to finish. The “Last Successful Backup” date should update to the current time.
Check your available iCloud storage before starting. A full backup may fail if the account does not have enough space. You can review storage under Settings, your name, iCloud, and Manage Storage. If the backup will not fit, a computer backup is a useful alternative, or you can temporarily manage large files and old backups.
A Mac can create a backup through Finder, while a Windows PC can use the Apple Devices app or iTunes, depending on the computer setup. Select the iPhone, choose the backup option, and enable “Encrypt local backup” if available. An encrypted backup is important because it can include saved passwords, Wi-Fi settings, Health data, and call history that an unencrypted backup may omit.
Do not erase the phone immediately after tapping the backup button. Open Photos, Files, Messages, and other irreplaceable apps to verify that recent content is present. If you use an app with its own export or cloud-backup feature, confirm that account separately. This extra check is especially valuable for authenticator apps, recording apps, and messaging services with unusual backup systems.
Check Photos, Messages, And Accounts
Photos deserve special attention because they can exist in several places. If iCloud Photos is enabled, go to Settings, your name, iCloud, and Photos to confirm synchronization is active. You can also sign in to iCloud.com from another device and check whether recent images appear there. If you store photos only on the iPhone, copy them to a computer or external drive before resetting.
Messages may be synchronized through Messages in iCloud or included in a device backup. Review the relevant iCloud settings and allow time for a large message history to upload. Shared albums, voice memos, downloaded documents, and offline media should also be checked individually rather than assumed to be protected.
Make sure you know the passwords for your Apple Account and important services. The Apple Account password may be required to disable Find My and Activation Lock. Save recovery codes and verify access to your primary email address and phone number before erasing the device.
If you use an Apple Watch, back up the iPhone before unpairing the watch. Unpairing creates a current watch backup in many normal situations and removes Activation Lock from the watch. For banking apps, work profiles, password managers, and authenticator apps, follow each provider’s transfer instructions before the phone is wiped.
Decide What To Do With Your eSIM
The reset process may ask whether to keep or erase the eSIM. This choice affects cellular service, so read the wording carefully. If you are keeping the iPhone and troubleshooting it, keeping the eSIM can save you from contacting your carrier again. You may still need to activate the line after the reset, depending on the carrier and the type of reset.
If you are selling, returning, or giving away the device, erase the eSIM. Leaving a cellular plan on a phone that someone else will use can cause privacy and account-management problems. The buyer should activate their own service rather than inherit yours.
Before removing the eSIM, ensure you can access your carrier account and know how to obtain a new activation method. Some carriers provide a QR code, an in-app transfer, or a carrier-assisted activation. A physical SIM should also be removed when the phone is changing owners.
The same preparation applies when moving to a new iPhone. Apple’s Quick Start can transfer data directly between nearby devices, but creating a backup first gives you a fallback if the wireless transfer stops or a device becomes unavailable. For practical device preparation and troubleshooting, iPhone guidance from Zack Michaels can provide additional context without replacing Apple’s official instructions.
Choose The Right Erase Method
On current iOS versions, open Settings, tap General, choose “Transfer or Reset iPhone,” and tap “Erase All Content and Settings.” The phone will explain what will be removed and may display the eSIM choice. Enter the device passcode, then enter the Apple Account password if requested to turn off Find My and Activation Lock.
The erase process can take several minutes. Keep the iPhone connected to power if its battery is low, and do not interrupt it while it is working. When finished, the device should display the “Hello” setup screen. If you are giving it away, stop there rather than signing back in.
There is a separate “Reset” menu in the same area. Options such as “Reset All Settings” remove preferences but leave personal data and apps in place. “Reset Network Settings” clears saved Wi-Fi networks and cellular-related settings. These options are useful for narrower problems, but they are not a secure preparation step for selling a phone.
| Situation | Best option | What happens to personal data | Main preparation |
|---|---|---|---|
| iPhone is slow or behaving strangely | Erase All Content and Settings | Everything on the device is removed | Create and verify a backup |
| Wi-Fi or cellular problems only | Reset Network Settings | Photos, apps, and messages remain | Save Wi-Fi passwords if needed |
| Incorrect preferences or system behavior | Reset All Settings | Personal content remains | Expect settings to return to defaults |
| Moving to another iPhone | Quick Start or backup restore | Data is transferred or restored | Keep both phones charged |
| Selling or returning the iPhone | Erase data and eSIM | Device content and cellular plan are removed | Sign out, disable Find My, and remove SIM |
Restore Your Information Safely
To restore an iCloud backup, proceed through the setup screens until “Apps & Data” appears, choose “Restore from iCloud Backup,” and sign in with the Apple Account used for the backup. Select the backup by date and size. Keep the phone on Wi-Fi and power while apps, photos, and other content continue downloading.
A computer backup is restored by connecting the iPhone to the Mac or Windows PC used to create it. In Finder, the Apple Devices app, or iTunes, select the restore-from-backup option and choose the correct snapshot. An encrypted backup may ask for the password that was created when the backup was made.
Some content returns gradually rather than all at once. Apps may download in the background, photos may continue syncing, and email accounts may need authentication. Leave the phone connected to Wi-Fi for a while before deciding that something is missing.
If you set up the iPhone as new instead of restoring, data that was synchronized with iCloud can still return after signing in, but local app data and customized settings may not. A clean setup can be worthwhile when troubleshooting, yet it should be a deliberate choice rather than an accidental result of skipping the restore screen.
Final Checks Before You Erase The Phone
Use this short checklist when preparing a reset:
- Confirm the latest iCloud or encrypted computer backup has completed.
- Open iCloud Photos, contacts, messages, and important files to verify recent content.
- Record access details for the Apple Account, email, password manager, and authenticator apps.
- Unpair an Apple Watch and remove physical SIM cards when changing owners.
- Decide whether to keep or erase the eSIM, based on whether you are retaining the iPhone.
- Disable or remove work-management profiles and sign out of services that require separate device authorization.
If you are selling or trading in the iPhone, remove it from your list of trusted devices after the erase if it still appears in your Apple Account. The setup screen should not show your name, photos, passcode prompt, or personal content. A recipient should see only the initial welcome screen and be able to activate the phone with their own account.
For a phone you are keeping, test the essentials after restoration: calls, mobile data, Wi-Fi, Bluetooth, Face ID or Touch ID, photos, messages, payment cards, and important apps. Re-enrolling in an authenticator or workplace system may be necessary even when the rest of the backup restores normally.
A factory reset is safest when treated as a controlled data move rather than a single troubleshooting button. Back up first, verify what matters, handle the eSIM deliberately, and choose whether to restore or start clean. Once those steps are complete, erase the iPhone through Settings and wait for the “Hello” screen before handing it over or beginning setup again.