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Common question · Data and security

How to wipe a phone before selling?

Back up, sign out of your accounts, then reset: on an iPhone, Settings → General → Transfer or Reset iPhone → Erase All Content and Settings; on a Samsung, remove your Google and Samsung accounts, then Settings → General management → Reset → Factory data reset. Take out the SIM. SubSell then wipes every phone a second time with professional software.

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Answered by the SubSell team · Family-run · Québécois and Canadian shop · Montreal, since 2017 · Updated

iPhone

  1. Back up to iCloud or your computer.
  2. Settings → [your name] → Sign Out: enter your Apple ID password, Find My turns off.
  3. Using an eSIM? Transfer it to your new phone first, or erase it with the phone when the iPhone asks.
  4. Settings → General → Transfer or Reset iPhone → Erase All Content and Settings.
  5. Take out the SIM card if there is one.

The detailed walkthrough, with the special cases: erase your iPhone before selling.

Samsung Galaxy

  1. Back up with Samsung Cloud, Google or Smart Switch.
  2. Settings → Accounts and backup → Manage accounts: remove your Google account, then your Samsung account.
  3. Settings → General management → Reset → Factory data reset.
  4. Take out the SIM card and the microSD card.

Google Pixel and other Android phones

  1. Back up with Google One or to your computer.
  2. Settings → Passwords, passkeys & accounts (Passwords & accounts on older versions): remove your Google account.
  3. Settings → System → Reset options → Erase all data (factory reset).
  4. Take out the SIM card, and the memory card if there is one.

Check that it worked

  • The phone restarts on the welcome screen, like a new phone.
  • It no longer appears in your devices on iCloud.com or in your Google account.

And then, at SubSell

Every phone we buy goes through professional data-erasure software before any resale, even if it has already been reset, and an unsellable device is recycled with its storage destroyed. How we erase your data.

Before you come in

Related questions

How long does it take to wipe a phone?

The reset itself takes a few minutes; the backup before it takes longer, depending on how much data you have and your Wi-Fi.

Can someone recover my data after a factory reset?

On a recent iPhone, no: erasing destroys the encryption keys, so the data is unreadable. On recent Android phones, which are encrypted, a reset does the same; old unencrypted models and memory cards can keep traces. That is why SubSell also runs every phone through professional erasure software.

Do I have to wipe my phone before bringing it to SubSell?

Ideally, yes. If you would rather not do it alone, the counter walks you through it, on your phone, and every phone is erased again with professional software before resale.

Straight answers

Other questions people ask us

  • What should I do before selling my phone?

    Back up your data, unpair your Apple Watch, move your eSIM and two-factor codes, sign out of iCloud (Find My off) or your Google and Samsung accounts, then erase the phone and take out the SIM. Bring photo ID. At SubSell, every phone also goes through professional data-erasure software before it is ever resold.

  • How do I remove everything from an old phone?

    Sign out of every account first, then erase the phone with its built-in reset (Erase All Content and Settings on an iPhone, factory data reset on Android), take out the SIM and memory card, and remove the phone from your Apple or Google account online. Your cloud copies stay safe. At SubSell, every phone is also wiped with professional erasure software before resale.

  • Does removing SIM card from phone delete everything?

    No. Removing the SIM card deletes nothing on the phone: your photos, messages, apps and accounts live in the phone’s storage and in your online accounts, not on the SIM. The SIM mostly identifies your phone line. To remove your data, sign out of your accounts and erase the phone, then keep the SIM.

  • What is the fastest way to sell a phone?

    The fastest way: prepare the phone in about ten minutes (back up, sign out of iCloud or Google, take out the SIM), then sell it to a buyback shop that pays on the spot. At SubSell in Montréal, the check takes about 5 minutes and you leave with cash, no appointment.

  • Which is the most hacked phone?

    There is no official “most hacked phone” ranking. By volume, Android phones face far more malware, largely because of their numbers and apps installed from outside official stores; iPhones are targeted less often, and when they are, it is mostly by rare spyware aimed at specific people. The biggest risks are a phone that no longer gets updates, phishing, and an old phone sold without being erased.

All our answers

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