SIM卡PIN码(PIN)旨在保护您的数据免受未经授权的访问。您插入智能手机的每张SIM 卡都有一个(SIM)PIN码，您需要输入该 PIN 码才能激活该卡。一些移动供应商为他们的所有SIM卡使用标准(SIM)PIN码，例如 0000 或 1234，而其他移动供应商则为每张SIM 卡(SIM)生成唯一的PIN码。无论如何，将默认SIM PIN码更改为您选择的密码会更安全。或者，虽然我们不建议这样做，但您可能希望禁用每次启动Android智能手机时都必须输入(Android)SIM PIN。无论(Regardless)您尝试做什么，本教程都能为您提供Android和三星 Galaxy(Samsung Galaxy)智能手机所需的答案：
注意：(NOTE:)要继续本教程，您需要知道您当前的SIM PIN 码(SIM PIN code)。输入错误的PIN 码(PIN)3 次会阻止您的SIM 卡(SIM card)，直到您使用PUK（或PUC - 个人解锁码，由您的移动运营商提供）解锁 SIM 卡(unlock the SIM card)。
如何在Android智能手机或平板电脑上访问SIM卡锁定设置
在现有的 Android 上，打开(open the Settings)智能手机或平板电脑的设置，然后点击安全(Security)。
访问安全设置
接下来，点击屏幕底部的高级以显示更多选项。(Advanced)
转到高级部分
按“SIM卡锁”(“SIM card lock)。”
访问 SIM 卡锁
如果您有双 SIM 卡(Dual-SIM)智能手机，请通过点击屏幕顶部选项卡中的相应网络来选择合适的SIM卡。(SIM)
选择您要更改或删除其PIN 码的(PIN)SIM卡(SIM)
在Samsung Galaxy Android(Samsung Galaxy Android)设备上访问设置(Set)SIM卡锁定设置
如果您使用的是三星(Samsung)智能手机，请从“设置”(Settings)菜单访问“生物识别和安全” 。(“Biometrics and security”)
点击生物识别和安全
接下来，向下滚动并按“其他安全设置”(“Other security settings)。”
访问其他安全设置
点击屏幕顶部的“设置 SIM 卡锁定”(“Set up SIM card lock”)。
访问 设置 SIM 卡锁
从现在开始，三星 Galaxy(Samsung Galaxy)设备和普通Android智能手机的步骤都是相同的。
启动Android（包括三星 Galaxy(Samsung Galaxy)）时如何解除SIM 卡锁(SIM)
如果您不想在每次启动Android智能手机或平板电脑时输入SIM PIN码，请点击(SIM PIN)“锁定 SIM 卡”(“Lock SIM card”)以关闭开关。
按下锁定 SIM 卡
系统会提示您输入当前的SIM卡PIN码。插入(Insert)它，然后点击OK。
输入当前PIN码以解除SIM锁定
从现在开始，您不再需要在每次启动智能手机或平板电脑时输入SIM 卡锁码。(SIM)但是，您仍然必须输入设备的PIN码、图案、密码或使用指纹扫描仪或面部解锁功能来访问您的数据。
注意：(NOTE:)如果您解除SIM卡PIN锁定，下一章中说明的“更改 SIM PIN”选项将显示为灰色。(“Change SIM PIN”)您必须激活“锁定 SIM 卡”(“Lock SIM card”)旁边的开关才能更改当前的SIM PIN码。
如何在Android（包括三星 Galaxy(Samsung Galaxy)）上更改SIM卡PIN码
要将现有的SIM PIN码更改为另一个，请在SIM卡锁定设置中，点击“更改 SIM PIN”(“Change SIM PIN)。”
在 Android 上更改 SIM PIN
当系统提示您插入旧 SIM PIN(Old SIM PIN)时，请输入您当前使用的那个。然后，点击确定(OK)。
输入当前或旧 SIM PIN(Old SIM PIN)，然后按 OK
接下来，输入您要使用的新 SIM PIN 。(New SIM PIN)您可以选择长度在四到八位之间的代码。完成后，点击OK。以下屏幕要求您“重新输入新 PIN”(“Re-type new PIN”)，看起来几乎相同。再次键入新的SIM PIN码以确认新的SIM PIN 码，然后按OK。
插入(Insert)并确认新的SIM PIN码
您的SIM卡PIN码现已更改，您会收到通知通知。
您已成功更改SIM PIN
注意：(NOTE:)请勿将SIM PIN码与用于解锁Android设备的密码混淆。每次启动或重新启动Android智能手机或平板电脑，或将 SIM 卡插入设备时，都需要(SIM)SIM卡(SIM)PIN 。(PIN)解锁设备屏幕时不需要它，一旦Android已加载且SIM卡已解锁。
您(Did)是否更改了默认SIM卡PIN 码(PIN)，或者您是否移除了SIM 卡(SIM)锁？
在结束本教程之前，我们想知道您做了什么。您是否(Did)将默认SIM PIN码更改为新的？您的新PIN(PIN)有多少位数字？或者，也许您取消了每次启动Android智能手机或平板电脑时输入SIM PIN码的要求？(SIM PIN)由于我们不建议这样做，因此我们想知道您放弃为您的数据提供额外安全层的原因。下方评论(Comment)，一起讨论。
How to change or remove the SIM PIN code on Android -
The SIM cаrd PIN code is meant to protect your data against unauthorized aсcess. Each SIM yoυ insert into a smartphone has a РIN code that you nеed to еnter in order to аctivate thе card. Some mobile prоviders use standard РIN codеs, like 0000 or 1234, for all thеir SIM cards, while others generate unique PIN codes for each SIM. Whatever the case, it’s safer to change thе default SIM PIN code to one of your choosing. Or, whilе we don’t recommend it, maуbе you want to disable having to enter a SIM PIN each time yoυ start your Androіd smartphоne. Regardless of what you arе trying to do, thiѕ tutorial has the answers you need fоr both stock Android and Samsung Galaxy smartphones:
NOTE: To go ahead with this tutorial, you need to know your current SIM PIN code. Entering the PIN incorrectly three times blocks your SIM card until you use a PUK (or PUC - personal unblocking code, provided by your mobile operator) to unlock the SIM card.
How to access the SIM card lock settings on your Android smartphone or tablet
On stock Android, open the Settings for your smartphone or tablet and tap on Security.
Access Security Settings
Next, tap on Advanced at the bottom of the screen to reveal more options.
Go to the Advanced section
Press on “SIM card lock.”
Access SIM card lock
If you have a Dual-SIM smartphone, choose the appropriate SIM card by tapping on the corresponding network from the tabs at the top of the screen.
Select the SIM card whose PIN you want to change or remove
Access the Set up SIM card lock settings on a Samsung Galaxy Android device
If you’re using a Samsung smartphone, access “Biometrics and security” from the Settings menu.
Tap on Biometrics and security
Next, scroll down and press on “Other security settings.”
Access Other security settings
Tap on “Set up SIM card lock” from the top of the screen.
Access Set up SIM card lock
From this point forward, the steps are the same for both Samsung Galaxy devices and stock Android smartphones.
How to remove the SIM lock when starting your Android (including Samsung Galaxy)
If you do not want to enter the SIM PIN code each time you start your Android smartphone or tablet, tap on “Lock SIM card” to turn off the switch.
Press on Lock SIM card
You are prompted to enter your current SIM card PIN code. Insert it, and then tap OK.
Enter the current PIN code to remove the SIM lock
From now on, you no longer have to enter the SIM lock code each time your smartphone or tablet starts. However, you must still enter your device’s PIN code, pattern, password or use the fingerprint scanner or face unlock features to access your data.
NOTE: If you remove the SIM card PIN lock, the “Change SIM PIN” option, illustrated in the next chapter, is greyed out. You must activate the switch next to “Lock SIM card” to make any changes to the current SIM PIN code.
How to change the SIM card PIN code on Android (including Samsung Galaxy)
To change the existing SIM PIN code to another one, in the SIM card lock settings, tap on “Change SIM PIN.”
Change the SIM PIN on Android
When you are prompted to insert your Old SIM PIN, write the one you’re currently using. Then, tap OK.
Type in the current or Old SIM PIN and press OK
Next, enter the New SIM PIN you want to use. You can choose a code that is between four and eight digits long. When you are done, tap OK. The following screen asks you to “Re-type new PIN” and looks pretty much the same. Confirm the new SIM PIN code by typing it once more, and then press OK.
Insert and confirm the new SIM PIN code
Your SIM card PIN code is now changed, and you get a notification letting you know.
You successfully changed the SIM PIN
NOTE: Do not confuse the SIM PIN code with the one used to unlock your Android device. The SIM card PIN is required each time you start or restart your Android smartphone or tablet, or when you introduce a SIM card into the device. It’s not needed when you unlock the device’s screen, once Android has loaded and the SIM card is already unlocked.
Did you change your default SIM card PIN, or did you remove the SIM lock?
Before closing this tutorial, we want to know what you did. Did you change your default SIM PIN code with a new one? How many digits does your new PIN have? Or maybe you removed the requirement to enter the SIM PIN code each time you start your Android smartphone or tablet? Since we don’t recommend that, we’d like to know your reasons for renouncing an extra layer of security for your data. Comment below, and let’s discuss.
