Skip to main content

Samsung Galaxy S3: How to Change SIM PIN

One way that you can do to make your Samsung Galaxy SIII more secure is by turning on your mobile phone PIN. Once you enabled this option you will be prompted to key in 4 digit PIN number every time you turn your phone on.

See also: How to Turn On or Off PIN on Samsung Galaxy S3

Turn your PIN on also can help you to prevent your phone from unauthorised access. And for the security reason you may want to change your PIN periodically from its current PIN number to the new PIN that you wish to use.

How to change SIM PIN code?
You can change your 4 digit PIN with ease by following the steps below:
  1. Go to Apps through Home screen.
  2. Scroll to Settings, then tap on it.
  3. Tap Security.
  4. Tap Set up SIM card lock.
  5. Tap Change SIM PIN.
  6. Here you will be prompted to enter your current PIN. If this is the first time for you to change your PIN, the default PIN is 0000. Tap OK button.
  7. Enter your new 4 digit PIN, then tap OK button.
  8. Enter your new 4 digit PIN again to confirm your new PIN, then tap OK button.
  9. Finish. Now your PIN has been successfully changed.

Well, although the steps to change the PIN is easy, but you should be careful when you entering your PIN. When you entering the wrong PIN three times in a row then your SIM will be blocked and you need to enter your PUK to unblock it. And for the record, if you entering the wrong PUK ten times in a row then your SIM will be blocked permanently or in other words your SIM will no longer can be used and you need to buy the new ones. So, hope it helps :)


  1. Hello, I'm trying to do the steps posted above to lock my brand new SIM card for safety reasons, but for some reason the change SIM pin tab is greyed out and I cannot select it. When I click the tab above it (Lock SIM card) tab above it, it asks for a pin number. I have one attempt left, I've tried the 0000, and nothing is working. Not sure what to do. Please help!

    1. Hi Adam Fowler,
      Thanks for coming.
      If the 0000 is failed, then try to call your provider to ask them the correct SIM PIN. Some providers may have the different SIM PIN.
      Hope this helps :)


Post a Comment

Hi the insiders,
Thanks for coming and I hope you can get something useful here.
Before submitting your comment to ask about an issue, please make sure to provide information as much as possible (at least write your model number and Android version) and describe the problem clearly.
Also, since all comments will be moderated, all comments with irrelevant links(if any) or contain with offensive/harsh word will be deleted.
The last, if you have a question and can't find the relevant article, please feel free to reach me through the Contact us page. I'll be more than happy to reply the email and answer the question :)

Popular posts from this blog

Samsung Galaxy S5: How to Access Clipboard in Android 4.4.2 Kitkat

Copy and paste text is a feature that can be used in Samsung Galaxy S5. This feature will help you duplicating or moving copied text with ease from one app to another. Since all copied text will be saved to the clipboard, it makes you can not only paste a text that you have just copied, but also paste an older copied text by selecting the required one from the clipboard as long as the clipboard has not been cleared yet.

How to access the clipboard?
Generally, there are two methods that can be used to access the clipboard: 1) in an app or screen where you can enter text by long tapping in a text entry field, 2) in an app or screen where you can see the keyboard by utilizing more options in the keyboard.

Method #1: From a text entry field
If you have ever copied text or taken a screenshot then you can easily access the clipboard from a text entry field in any app or screen. But, as the example, we'll access the clipboard from a text entry field when composing a new text message in Mes…

Samsung Galaxy S4: How to Fix Missing Microphone Button on Samsung Keyboard

In the stock Samsung keyboard, there are some keys that have several functions, for instance a key in the left side of Space bar(it's usually displayed with a Settings/Cog wheel icon), when you long tap this key, you will see some options available, such as Keyboard settings, Smiley, Clipboard, Microphone, etc. Those hidden button sometimes make some users who want to use one of them have difficulty to find the button.

See also: How to Find Mic Button on Samsung Keyboard

But, in certain case, the Mic button is completely not available though the user have had long tapped the key in the left side of Space bar, as experienced by one of insider named Linda. She says that she can't find Mic button though she has had long tapped the key in the left side of Space bar when she want to use it to voice to text.

How to fix missing mic button on Samsung keyboard?
If you're also experiencing the same problem, you can make the Mic button available again in your keyboard by following the…

Samsung Galaxy S4: How to Block Unwanted or Unknown Text Messages

I believe most of phone's users have been choosing a message as one of their favourite method to communicate with others. That's why no wonder if most of smartphones available today--including with the Samsung Galaxy SIV--have provided the stock Messaging app for their users, so the user will be more easier if they want to send or receive a message in their phone without having to install the app first.

See also: How to Create and Send SMS or MMS in the Samsung Galaxy S4

Aside from sending and receiving a message, the stock Messaging app also allows you to block text messages from certain contact matches with the criteria you've specified before, block text messages contain with certain phrase as well as block text messages from unknown senders. This of course will help you to keep your inbox clean from those unwanted or unknown text messages.

How to add or remove a contact in the spam number list?
If you wish to block or unblock text message from certain contact, you can d…