With the release of iOS 17 and iPadOS 17, Apple has introduced a new security feature that allows users to reset a new passcode if they change it and forget it immediately.

How to Reset a New Passcode on iPhone Using the Previous One

Retaining the Old Passcode for 72 Hours

In iOS 17, when you change your passcode, the previous passcode remains active for a duration of 72 hours. If you forget the new passcode during this period, you can still reset it using the old one.

Expiration of the Old Passcode

After the 72-hour timeframe, the old passcode automatically expires and can no longer be used for resetting purposes. If you forget your passcode beyond this point, you must perform a device reset, which will erase all your data.

Resetting a New Passcode Using the Old Passcode

Follow these steps to reset a new passcode on your iPhone using the previous one:

  1. Enter an incorrect passcode several times on your iPhone.
  2. At the bottom of the screen, tap the “Forgot Passcode?” option.
  3. Select the “Reset Passcode” option to proceed.
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How to Reset a New Passcode on iPhone Using the Previous One
  1. Enter your previous passcode from your iPhone.
  2. Create a new passcode and enter it twice for confirmation.
How to Reset a New Passcode on iPhone Using the Previous One

Disabling Old Passwords Immediately

If you prefer to turn off the validity of old passcodes immediately after changing them, follow these steps:

  1. Open the Settings app on your iPhone with iOS 17.0 or later.
  2. Select “Face ID & Passcode” (or “Touch ID & Passcode,” depending on your device).
  3. Enter your new passcode.
  4. Look for an option to disable the validity of old passcodes immediately after a change.

Ensuring Security with Passcode Reset

With this new security feature in iOS 17, users can reset their passcodes if they forget them, provided they do so within the 72-hour window. Additionally, turning off old passcodes immediately adds an extra layer of security to safeguard personal data on iPhones.


Ruby has been a writer and author for a while, and her content appears all across the tech world, from within ReadWrite, BusinessMagazine, ThriveGlobal, etc.

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