How to Delete All Info on iPhone: A Complete Guide to Erasing Your Device

Whether you're selling your iPhone, passing it to a family member, or simply starting fresh, knowing how to properly delete everything on your device is essential. A partial wipe leaves personal data exposed. A full, correct erase wipes the slate clean — photos, contacts, messages, accounts, and all.

Here's exactly how it works, what affects the process, and what you need to think through before you tap that final button.

What "Deleting All Info" Actually Means on an iPhone

When people say they want to delete everything on their iPhone, they're typically referring to a factory reset — more formally called Erase All Content and Settings. This process does several things simultaneously:

• Removes all personal data: photos, videos, messages, contacts, notes, and app data
• Signs out of Apple ID and iCloud
• Unpairs Apple Watch (if connected)
• Removes all installed apps and their associated data
• Erases saved Wi-Fi passwords, Bluetooth pairings, and system preferences
• Wipes payment information stored in Apple Pay

Critically, modern iPhones use hardware-level encryption on their storage. When you perform a factory reset, the device discards the encryption key, making previously stored data cryptographically unreadable — not just deleted in the traditional sense. This is why iPhone erasure is considered highly secure compared to older methods of "deleting" files.

Before You Erase: The Steps That Matter

Rushing straight to the erase screen can cause problems. A few preparatory steps determine whether the reset goes smoothly or leaves loose ends. 🔑

Back Up Your Data First

If you want to preserve anything — photos, contacts, app data — you need to back up before erasing. Two main options exist:

iCloud backups require sufficient free storage in your iCloud account. Local backups via a Mac or PC bypass that limitation but require a cable and computer access.

Sign Out of iCloud (or Let the Reset Do It)

Activation Lock is a critical consideration. If you erase a device while still signed into iCloud without properly signing out, Activation Lock may remain enabled — meaning the next user (or you, on a fresh setup) will be prompted for the original Apple ID credentials before the phone can be used.

The Erase All Content and Settings process will prompt you to enter your Apple ID password during the erase, which simultaneously disables Activation Lock. As long as you know your Apple ID and password, this is handled automatically.

If you've forgotten your Apple ID password, resolve that through Apple's account recovery process before starting the erase.

How to Erase All Content and Settings on iPhone

The core method works across all modern iPhones running iOS 15 and later, though the exact menu path shifted slightly in iOS 16 and again in iOS 17.

General path:

1. Open Settings
2. Tap your name at the top (Apple ID)
3. Scroll down and tap Sign Out — or skip this and proceed directly to the erase
4. Go to Settings → General → Transfer or Reset iPhone
5. Tap Erase All Content and Settings
6. Enter your passcode if prompted
7. Confirm with your Apple ID password

The device will restart, display a progress indicator, and return to the setup screen ("Hello") when complete.

On older iOS versions (14 and below), the path runs through Settings → General → Reset → Erase All Content and Settings.

Erasing Remotely: When You Don't Have the Phone in Hand 📱

If your iPhone is lost, stolen, or you simply can't access it physically, you can trigger a remote erase through iCloud.com:

1. Sign in at iCloud.com with your Apple ID
2. Open Find My (or Find My iPhone on older interfaces)
3. Select the device
4. Choose Erase This iPhone

This sends the erase command when the device next connects to the internet. The device must have Find My iPhone enabled beforehand — you cannot activate this feature after the fact.

Remote erase also works through the Find My app on another Apple device signed into the same Apple ID.

Factors That Affect How This Process Plays Out

The same basic steps apply to most users, but several variables change the experience meaningfully:

iOS version — Older devices stuck on iOS 14 or below have a slightly different menu structure and lack some of the newer transfer prompts introduced in iOS 15+.

Whether Find My is enabled — This determines whether remote erase is available and whether Activation Lock applies.

Available iCloud storage — If you want a cloud backup before erasing, your iCloud plan needs enough headroom. A 5GB free tier fills quickly with photos and messages.

Managed/work devices — iPhones enrolled in Mobile Device Management (MDM) through an employer or school may have restrictions on self-service resets. IT administrators can also push remote wipes independently. If your device has a management profile installed, the erase experience may differ.

iPhone model and storage size — Erasing a 512GB iPhone takes measurably longer than erasing a 64GB model, simply because of the encryption key process across more storage blocks.

What Happens to Data After the Erase

Once the erase completes, personal data is not recoverable through standard means. The encryption-based wipe is specifically designed to make forensic recovery impractical without the original encryption key — which no longer exists after the reset.

Data that lives outside the device — in iCloud, Google accounts, or third-party app servers — is unaffected by the local erase. Your iCloud Photo Library remains in iCloud. Your Gmail stays in Gmail. A factory reset only clears what's stored locally on the iPhone itself.

This distinction matters depending on what you're trying to achieve. Erasing the phone doesn't erase your digital footprint from cloud services — those require separate account-level actions on each platform.

Your specific situation — which iOS version you're running, whether the device is managed, how your data is distributed between local and cloud storage, and what you plan to do with the phone afterward — will shape which of these steps matter most for your particular reset. 🗂️