Daily use of a Xiaomi or Redmi smartphone often begins with an annoying request to enter a four-digit code. SIM-A card from unauthorized use in the event of theft or loss of a device, however, for many users, the need to enter numbers every time you turn on your phone becomes an unnecessary step, slowing down access to messages and calls.
Disabling this feature on smartphones with a MIUI shell or the new HyperOS is done through the standard settings menu, but the path to the desired item may not be obvious to beginners. In this article, we will discuss in detail the algorithm of actions that will allow you to remove the PIN code from the SIM card on Xiaomi, making it instant and convenient to turn on the phone.
Before you start changing your security settings, make sure you remember the current code. If you enter the wrong value three times in a row, the card will be locked and you will need to unlock it. PUK-code that is usually on a plastic card holder obtained when you buy a SIM.
Why do I need a PIN code and whether it is worth turning it off?
PIN-The Personal Identification Number is a security element that is stored directly on the SIM card chip, not in the phone’s memory, and its main purpose is to prevent attackers from using your number if they steal your phone and try to insert the SIM card into another device. Without this code, the phone will not be able to register in the operator’s network.
By disabling the code request, you sacrifice security for convenience. If your Redmi smartphone falls into the wrong hands, a thief can extract the SIM card, insert it into his device and use your number to make calls or access bank accounts through SMS confirmations. However, if you use a secure screen lock (print, face, complex pattern lock), the risk of the SIM card being stolen is reduced.
Many users prefer to disable PINs to avoid a situation where after a system reboot or battery drain, the phone is left without communication until the code is entered, especially for those who are waiting for important calls or using a smartphone as a modem to distribute the Internet.
Preparing for changes in security settings
Before you go to the settings menu Xiaomi, you need to perform a few preparatory steps, which will help to avoid accidental locking of the SIM card and loss of access to the mobile network. First of all, make sure that the smartphone is charged or connected to the power source, as the process affects the system settings of communication.
You're going to need to find the plastic card that you got in the phone room along with the SIM card, which usually has two important values: PUK-The code (8 digits) and the initial PIN (often 0000 or 1234) if the card is lost, you can find this information in the operator's personal account or by calling the customer service.
- 📱 Make sure your smartphone is on and your SIM card is active (there is a network signal).
- 🔢 Remember or find the current PIN (standard: 0000, 1111, 1234).
- 🔋 Check the battery power so that the phone does not turn off during the setup process.
- 📶 If you have two SIM cards, decide which one to disable the request for.
It is important to understand that the settings are applied individually for each SIM card. If your Redmi has two communication modules, disabling the request on one will not affect the second.
☑️ Checking before resetting password
Step-by-step: how to disable the PIN code on MIUI and HyperOS
The interface of the MIUI shell and the new HyperOS may vary slightly from version to version, but the logic of the menu remains the same. To remove the password request, you need to go to the deep settings of the mobile network. Follow the algorithm carefully so that you do not get confused in the menu items.
Open the Settings app on the home screen or in the notification curtain. At the top of the screen, find the search bar and type in the request"SIM", Or manually go along the way: Settings → SIM-Maps and mobile networks. In the list that opens, you'll see SIM cards installed.
Path to setup: → SIM- Maps and Mobile Networks → [Select SIM] → Settings SIM- MapsClick on your operator name or on Settings SIM-In the menu that opens, find a switch that says Ask for it. PIN-code (or "Blocking" SIM-Click on it. The system requires you to enter the current PIN to confirm the operation. Enter it and press OK".
Once successfully entered, the switch must change position and the inscription next to it becomes inactive, and from now on, when the phone is turned on or rebooted, the system will no longer request code to access the operator's network.
What if the SIM settings item is not on the menu?
Decision: What to do if the code is not accepted
It's quite common for users to confuse the PIN with the screen unlock code or the mailbox code, and if you typed the wrong code, the system will issue a warning and leave the number of attempts remaining.
⚠️ Attention: After three false attempts to enter the PIN code, the SIM card will be blocked. PUK-Don't guess the code at random!
If the blockage does occur, don't panic. PUK-Personal Unblocking Key: Enter it in the query box after successful entry. PUK-The system will prompt you to set a new PIN, come up with a combination that is easy to remember, or temporarily set a standard one (for example, 0000), then calmly disable the request through the settings menu, as described above.
The table below shows the standard codes for the main carriers that are often used by default when buying a new SIM card.
| Operator. | Standard PIN | Standard PUK | Where to find the current code |
|---|---|---|---|
| MTS | 1111 | On a plastic map. | Personal office of MTS |
| Beeline | 1234 | On a plastic map. | My Beeline appendix |
| MegaFon | 0000 | On a plastic map. | Communications salon or website |
| Tele2 | 0000 | On a plastic map. | Personal account of Tele2 |
If you enter incorrectly ten times PUK-code, the SIM card will be permanently blocked (burn), in this case, you can only restore the old number by contacting the operator's salon with a passport to reissue the SIM card.
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Save it. PUK-code in a safe place, such as in cloud storage notes or take a photo of a plastic card, which will save you in an emergency situation when you do not have the original packaging at hand.
Features of settings for two SIM-map
Xiaomi and Redmi are popular with two physical SIM cards, which creates a nuance: the security settings for them are stored independently. By disabling the request for a password for Sim 1, you do not turn it off for Sim 2.
When you go to the menu Settings → SIM-You'll see two separate blocks on the maps and the mobile networks, and you'll have to click on the first block, turn off the PIN request, enter the code, and then go back and do the same thing for the second SIM card, and then the phone will stop asking questions when it starts.
Sometimes users encounter an interface bug where, after disabling the code on one card, the phone still requests the code when it reboots, but it is unclear which card it is for, in which case, look closely at the operator icon in the corner of the request screen or try to enter the code from the second card.
- 🔄 Turn off sequentially: first for one card, then for the second.
- 👀 Keep an eye out for the status bar: it usually tells you which one is. SIM attention.
- 🔒 Use different codes for different cards if you decide to leave the protection on.
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Security settings are applied individually to each SIM card. Be sure to check the PIN request status for both slots to completely eliminate unnecessary requests when turned on.
Alternative methods and hidden menus
In some cases, the standard menu may not be available or work properly due to firmware errors, so you can use the engineering menu or special commands, although in modern versions of Android access to them is often limited. Try to type in the "caller" code ##4636#. If the menu opens, select "Phone Information" and search there for the settings of the SIM Toolkit.
However, for most Redmi users, this is redundant. The standard way through settings is the only officially supported and secure method. Using third-party apps from Google Play to manage the PIN code is not recommended, as they often require unnecessary permissions and do not have access to a secure SIM card chip.
If none of the methods work, and the phone constantly requires code that you precisely type correctly, it may be the problem with the SIM card chip itself. In rare cases, the contact is oxidized or the card is damaged. Try gently wipe the SIM card chip with a wiper or an alcohol wipe and insert it again.
⚠️ Warning: Do not attempt to use root rights or third-party system utilities to reset your PIN.This can cause the model to malfunction and cause a complete loss of communication on the device.