Why and when to change your phone password

Your phone password (also called a PIN, passcode, or lock screen code) is the first barrier between someone who picks up your phone and your personal data. You should change it if you think someone knows your current one, if you have shared it with someone who no longer needs access, or simply as a regular security habit — many people change theirs every few months.

The process takes less than five minutes and works the same way whether you use an iPhone or Android phone. The steps differ slightly between the two, but the principle is identical: you go into your phone's settings, find the security or lock screen section, and replace your old code with a new one.

Key Takeaways

  • On an iPhone, open Settings, tap Face ID & Passcode (or Touch ID & Passcode on older models), enter your current passcode, then tap Change Passcode and enter your new one twice.
  • On Android, open Settings, go to Security or Biometrics and Security, select Screen Lock or Lock Type, enter your current PIN, then create a new one.
  • Write down your new password somewhere safe before you finish, because you cannot recover it if you forget it.
  • A strong password uses at least six characters and mixes numbers with letters or symbols rather than using only numbers.

How to change your password on an iPhone

Step 1: Open the Settings app (the gray gear icon on your home screen).

Step 2: Scroll down and tap Face ID & Passcode. If you have an older iPhone without Face ID, look for Touch ID & Passcode instead. If your phone uses neither, look for Passcode.

Step 3: Enter your current passcode when the phone asks you to.

Step 4: Tap Change Passcode at the top of the screen.

Step 5: Enter your current passcode one more time to confirm.

Step 6: Enter your new passcode. The phone will ask you to enter it again to make sure you typed it correctly. Type the same code both times.

Step 7: Tap Done. Your new passcode is now active. The next time you lock your phone, you will need to use the new code to unlock it.

How to change your password on Android

Step 1: Open the Settings app (usually a gear icon, though the exact appearance varies by phone brand).

Step 2: Look for Security or Biometrics and Security. The exact name depends on your phone's brand and Android version. Scroll down if you do not see it immediately.

Step 3: Tap Screen Lock or Lock Type.

Step 4: Enter your current PIN or passcode when prompted.

Step 5: Tap the lock type you currently use (PIN, Password, or Pattern). You are not changing the type — just updating the code within that type.

Step 6: Enter your new PIN or passcode. Android will ask you to enter it again to confirm. Type the same code both times.

Step 7: Tap Done or Confirm. Your new code takes effect immediately.

Choosing a password that is hard to guess

A password made only of numbers — like 123456 or your birth year — takes seconds for someone to break. A stronger password mixes numbers with letters, or adds a symbol if your phone allows it. Examples of stronger passwords are 7Blue42, K9$mPx2, or 4Ever&More.

Avoid using birthdates, anniversaries, or sequences like 111111 or 12345. Do not use the same password you use for email, banking, or social media. If someone learns one password, you want the others to stay safe.

Your phone will tell you if your password is too simple. If you see a warning that your code is weak, add more characters or mix in letters and numbers instead of using only digits.

What to do if you forget your new password

If you change your password and then forget it, you cannot simply reset it the way you can with a computer. Your phone is designed to lock you out if someone enters the wrong code too many times, which means you will need to restore the phone using a computer or contact your phone's manufacturer.

Before you finish changing your password, write the new code down on paper and store it somewhere safe — a drawer at home, a safe, or a notebook you keep in a secure place. Do not store it in your phone's notes app, because anyone who unlocks your phone can read it.

If you use a password manager (an app that stores passwords securely), you can save your phone password there instead. Popular password managers include Bitwarden, 1Password, and Dashlane.

Using biometric locks alongside your password

Most modern phones let you unlock with your face or fingerprint instead of typing a code every time. This does not replace your password — it works alongside it. Your phone still needs a password as a backup in case your face or fingerprint does not work, or if someone forces you to unlock it.

You can set up face or fingerprint unlock in the same Settings section where you changed your password. On iPhone, this is Face ID & Passcode. On Android, it is usually under Biometrics and Security. Your password remains the same; you are just adding another way to unlock the phone.

Frequently Asked Questions

Can I change my password if I forgot my current one?

No. If you cannot remember your current password, you will need to restore your phone using a computer or contact your phone's support line. This erases all data on the phone unless you have a backup. This is why writing down your new password before you finish is important.

What happens if I enter the wrong password too many times?

Your phone will lock you out temporarily. After several wrong attempts, the wait time increases — first a few minutes, then longer. If you continue entering wrong codes, your phone may lock permanently until you restore it or contact the manufacturer.

Do I need to change my password if I use Face ID or fingerprint unlock?

Your biometric unlock (face or fingerprint) does not replace your password. You should still change your password periodically, because your password is the backup if biometric unlock fails or is unavailable.

Can I use letters and symbols in my phone password, or only numbers?

Most modern phones allow letters and symbols. iPhone passcodes can include letters and numbers. Android PINs are numbers only, but you can switch to a Password type that allows letters and symbols instead.

Will changing my password affect my apps or data?

No. Changing your phone password only affects how you unlock your phone. Your apps, photos, messages, and all other data stay exactly as they are. You will not lose anything.