iOS 17: Use a Passcode with Letters on iPhone for Extra Security

Want to level up your iPhone security? Swapping your numeric passcode for one with letters is a savvy move. It’s a piece of cake to do on iOS 17, and I’m here to guide you through it. By the end of this quick read, you’ll be all set with a stronger, alpha-numeric passcode. Let’s dive right in!

You can also watch this video about how to use a passcode with letters on an iPhone for more information.

Step by Step Tutorial: Use a Passcode with Letters on iPhone

Before we jump into the steps, let’s understand what we’re about to do. We’re going to change your current passcode to a new one that includes letters, which is like upgrading from a regular lock to a deadbolt for your iPhone. This makes it tougher for prying eyes to guess their way into your phone.

Step 1: Open Settings

Navigate to the settings app on your iPhone.

Within settings, you’ll find a wide array of options. But don’t worry, we’re only interested in one specific area.

Step 2: Tap on ‘Face ID & Passcode’ or ‘Touch ID & Passcode’

Select the option that matches your iPhone model.

Once you’re in, you might need to enter your current passcode to proceed. It’s just a way for your iPhone to make sure it’s really you.

Step 3: Tap on ‘Change Passcode’

This is where the magic happens.

You’ll be prompted to enter your current passcode first. This is just another security check.

Step 4: Tap on ‘Passcode Options’

Here, you’ll see different passcode types to choose from.

You’ll find options like ‘Custom Numeric Code’ and ‘Custom Alphanumeric Code’. We want the latter.

Step 5: Select ‘Custom Alphanumeric Code’

This option lets you use letters in your passcode.

Now, you’ll be able to create a passcode with both numbers and letters. Go ahead, be creative!

Step 6: Enter Your New Passcode

Type in the new passcode you’d like to use.

Remember to choose something memorable and secure. Avoid obvious choices like ‘password’ or ‘1234’.

Step 7: Verify Your New Passcode

Re-enter your new passcode to confirm it.

If they match, you’re all set! If not, you’ll just need to repeat the last two steps.

Once you’ve completed these steps, your iPhone will now require the new alphanumeric passcode to unlock. It’s a small change that can significantly boost your security, so pat yourself on the back for a job well done!

Tips: Strengthen Your iPhone Passcode

  • Always choose a passcode that’s hard to guess. Mix in upper and lower case letters, numbers, and even symbols.
  • Avoid using personal information like birthdays or anniversaries.
  • Change your passcode regularly to maintain security.
  • Don’t share your passcode with others.
  • Consider using the ‘Erase Data’ feature so that data is wiped after 10 incorrect passcode attempts.

Frequently Asked Questions

Can I use symbols in my passcode?

Yes, iOS 17 allows you to use symbols as part of your custom alphanumeric code for added security.

What if I forget my new passcode?

If you forget your passcode, you’ll need to reset your iPhone. Remember, this will erase all data, so it’s essential to back up your device regularly.

How often should I change my passcode?

It’s good practice to change your passcode every few months or if you suspect someone else has learned it.

Is a longer passcode better?

Yes, generally, the longer and more complex your passcode, the more secure it is.

Can I still use Touch ID or Face ID with a custom alphanumeric passcode?

Yes, you can use Touch ID or Face ID in conjunction with your new passcode for even quicker access to your device.


  1. Open Settings.
  2. Tap on ‘Face ID & Passcode’ or ‘Touch ID & Passcode’.
  3. Tap on ‘Change Passcode’.
  4. Tap on ‘Passcode Options’.
  5. Select ‘Custom Alphanumeric Code’.
  6. Enter Your New Passcode.
  7. Verify Your New Passcode.


Securing your iPhone with a strong passcode is crucial in today’s digital age. With iOS 17, adding letters to your passcode is a straightforward process that significantly enhances the security of your device. Not only does it deter hackers, but it also gives you peace of mind knowing that your personal information is better protected. Remember to follow the steps carefully, choose a robust passcode, and you’ll have a fortress in your pocket. So, have you updated your passcode yet?

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