How to Securely Wipe Your Phone Before Selling: 2026 Guide

Tapping “factory reset” and handing the phone over feels like enough. Often it isn’t. To securely wipe your phone before selling it, the order of the steps matters more than the reset button itself: back up, sign out of your accounts, then erase. Do it in another order and your accounts can stay tied to the device, or the buyer ends up with a phone they can’t even set up.

This guide covers iPhones and Android phones, with Pixel and Samsung Galaxy paths spelled out. The iPhone steps follow Apple’s own instructions, last updated in June 2026 for iOS 26.

How to securely wipe your phone before selling: the short answer

Back up the phone, and test the backup.
Sign out of your Apple Account, or remove your Google (and Samsung) account.
Erase all content and settings.
Remove the SIM and memory card, then confirm the phone boots to a clean setup screen.

The rest of this article is the detail behind those four lines, including the parts most guides skip.

Before you wipe anything

Back up first. iPhone owners can use iCloud or a computer; on Android, the Google backup lives under Settings > System > Backup on most phones, and it’s worth opening Google Photos to confirm your pictures finished uploading.

Then test it. Restore a few photos or contacts onto another device and see whether they show up. Picture the alternative: the phone is wiped, the buyer is ten minutes away, and your only backup quietly stopped syncing in March.

Authenticator apps are the classic trap. If your bank’s login codes live only on this phone, erasing it locks you out of the account. Move them to the new phone before you touch anything else. And if your phone number is changing, Apple says to add extra trusted phone numbers to your account first so you don’t lose access.

One piece of popular advice is worth ignoring: deleting photos and contacts by hand before the reset. On an iPhone signed in to iCloud, Apple warns that manually deleted items are removed from iCloud and from every connected device. Let the erase do the work.

Two smaller jobs, both iPhone-related. Unpair your Apple Watch if you have one. And if the phone has an AppleCare plan, cancel it or transfer it to the new owner.

How to wipe an iPhone before selling it

Trading in at an Apple Store? Stop here and don’t erase anything. Apple’s own page says the specialist walks you through the remaining steps in the store. For a private sale or a mailed-in trade-in, go in this order:

Open Settings, tap your name, scroll down and tap Sign Out. On iOS 26 you’re asked whether to erase the device or sign out without erasing. Choose erase.
Enter your Apple Account password when asked. This is what turns off Find My.
Go to Settings > General > Transfer or Reset iPhone > Erase All Content and Settings. Enter your passcode and tap Erase. If the sign-out step already erased the phone, you can skip this one.
If the phone uses an eSIM, choose the option that erases the eSIM profile too.
Switching to Android? Deregister iMessage first, so texts from iPhone users keep reaching you.
Remove the old phone from your list of trusted devices in your Apple Account settings.

According to Apple, the erase also removes your Apple Pay cards and turns off Find My and Activation Lock. Your iCloud data is not deleted by erasing the phone, which is exactly why that backup exists.

How to wipe an Android phone (Pixel and Samsung)

Android reverses your instinct. Accounts come off first, and the reset comes second.

The reason is Factory Reset Protection, or FRP, which has shipped since Android 5.1. After a reset, the phone demands the credentials of the last Google account that was signed in. It’s built to stop thieves reselling wiped phones, and it works just as well against an innocent buyer. Android Authority also points out that a bare reset doesn’t clear the phone’s trace from your Google account, which is one more reason to remove the account deliberately.

Back up, as above.
Go to Settings > Passwords & accounts (it’s just “Accounts” on some phones), tap your Google account and choose Remove account. Repeat for every Google account on the phone.
On a Samsung Galaxy, also remove your Samsung account under Settings > Accounts and backup > Manage accounts. Manufacturer accounts can block a reset the same way a Google account does.
Reset. On a Pixel: Settings > System > Reset options > Erase all data. On a Samsung Galaxy: Settings > General management > Reset > Factory data reset.
Take out the SIM. If there’s a memory card, take that out too, unless you’re deliberately selling it with the phone.

Menu names drift between Android versions and makers. If yours doesn’t match, search the Settings app for “reset.”

Is a factory reset enough to securely wipe a phone?

On a current phone, yes. Modern iPhones and most modern Android phones encrypt their storage, so a reset that discards the encryption key leaves the data unreadable.

The caveat comes from Gizmogo: apart from physically destroying the phone and its storage, no method is 100 percent infallible. For a phone you’re selling to a stranger, that’s an acceptable level of risk. For one that held state secrets, buy a hammer.

Older guides push shredder apps, or tell you to fill the phone with junk files and reset it a second time. That advice dates from when phones weren’t encrypted. On a current phone it adds time and not much else. If your Android is old enough that encryption was never switched on, turn it on first (check the Security section of Settings), then reset.

What happens if you forget to sign out first?

The buyer meets a lock screen asking for your credentials.

On an iPhone, that’s Activation Lock. You can remove the device from your Apple account remotely at appleid.apple.com and then guide the buyer through clearing it. Apple’s own advice is to resolve it before the phone changes hands, because the next owner can’t activate it until the lock is gone.

On Android, it’s FRP, and the buyer is stuck on a screen asking for your Google account. You’ll need to be reachable, patient, and able to sign in.

Skipping the sign-out step will likely end in a return or a dispute. Selling through a buyback or trade-in service doesn’t help either. Apple notes that failing to sign out of an Android account affects a trade-in’s eligibility.

Final check before you hand it over

The whole process takes 20 to 30 minutes. Spend two of those on a last look.

Power the phone on. It should land on a “Hello” or language-selection screen. If an iPhone asks for an Apple Account you didn’t enter, Activation Lock is still on. If an Android phone asks for a previous owner’s Google account during setup, FRP is still on. Go as far as the account screen, and don’t sign in to anything.

Then the practical checks. Remove the SIM, the case and the screen protector. Confirm the IMEI is clean and the phone is fully paid off. On an iPhone, look at Settings > Battery > Battery Health, and mention any service recommendation in your listing.

A phone that boots to a clean setup screen sells faster and comes back less often. That’s the whole point of doing this properly.