Owners of Xiaomi, Redmi and Poco smartphones often face the need to enter a digital code every time they turn on the device. SIM-It's in someone else's phone, but it can be very uncomfortable in everyday life, and it's especially annoying when you have to answer your phone right now, and the phone has just rebooted and you need to enter numbers.
Procedure for disabling this function in the shells MIUI And the new HyperOS is pretty simple, but the paths to settings may vary depending on the Android version and the firmware region. SIM-You can insert the card into any device and make calls at your expense, but if you have the device on hand, you can make the most of it for the sake of comfort.
In this article, we will discuss the algorithm of actions in detail, consider possible problems with access to the settings menu and answer questions about the difference between PIN and PUK codes. You will learn how to manage communication security parameters and be able to flexibly adjust your gadget to your usage habits.
Why do I need a PIN code and whether it is worth turning it off?
A personal identification number is a digital password that is stored directly on a chip. SIM-The main task of the attacker is to protect the subscriber number from unauthorized access, if an attacker steals your smartphone, he will not be able to insert your SIM into his device and use the number to call or receive confirmation codes from banks.
However, constantly entering a password every time you reboot or retrieve the tray creates inconveniences, and many users prefer to sacrifice a level of protection for the sake of speed access to the network. It is worth noting that modern Xiaomi smartphones have their own screen lock, fingerprint and Face ID mechanisms that protect access to the applications and contacts themselves.
⚠️ Warning: Before disabling protection, make sure you have a strong password to unlock the screen itself.
If you change devices frequently or fear theft, it is better to leave the check on. Otherwise, especially for second SIM cards used only for the Internet, this measure may be unnecessary.
Preparing for changes in security settings
Before making changes to system settings, you need to make sure you have access to current authorization data.The system will not allow the verification to be removed unless you confirm your rights to control. SIM-You'll need the current PIN, which is usually set by the operator or you've set before.
Standard combinations for Russian operators often look like 0000 or 1234, but it is better to check this information in the contract or personal account, SIM-The card will be blocked and will be required. PUK-Unlocking code, which is a more complex procedure.
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Write down the current PIN on paper before you start the procedure, and if the phone calls for it again during the settings failure, you'll have a backup of the access data on hand.
It is also recommended to check the battery power of the device.Although the process takes a couple of minutes, suddenly turning off the smartphone while recording the configuration. SIM-The card can cause a software failure, after which the phone will stop seeing the network.
- 📱 Make sure that SIM-The card is active and the phone sees the operator's network.
- 🔢 Remember or find the current 4-digit PIN.
- 🔋 Charge the smartphone battery to at least 30-40%.
- 📶 Check that the SIM card tray is tightly closed and free of damage.
Step-by-step: disable via MIUI and HyperOS settings
The interface of settings in Xiaomi smartphones may vary slightly depending on the version of the operating system. In current versions of HyperOS and fresh builds of MIUI 14, the menu logic has become more unified, but the path to SIM cards remains classic for Android.
To start, open the main app menu and find the Settings icon (cogs) and you are interested in the data connection and transfer section, depending on the location, it may be called «SIM-Maps and mobile networks or simply “Mobile Network».
☑️ PIN switching off algorithm
Once you enter the SIM management menu, you will see a list of all the modules installed. Choose the one you want to change the settings for, usually signed as "SIM 1" and "SIM 2" or have operator names if they are read automatically.
Inside the menu of a specific SIM card, look for the item Protection SIM-card or lock SIM. When you click on it, the system will request the current password, and after successful authorization, you will see a switch, and then you will switch it to the "off" position (gray), and the request for the password will disappear when the device starts.
| Action. | Path to the menu (Russian) | Path to the menu (English) | Expected output |
|---|---|---|---|
| Entrance to settings | Settings | Settings | Opening the main menu of parameters |
| Section of communication | SIM-maps and mobile networks | SIM cards & mobile networks | List of active SIM cards |
| Choosing a card | Click on SIM 1 or SIM 2 | Tap SIM 1 or SIM 2 | Menu settings of a specific map |
| Protection parameter | Protection SIM-map | SIM card lock | The screen of the current PIN code input |
Alternative method through search of settings
Sometimes users get lost in a multi-level menu, especially if the firmware version has a non-standard localization. In such cases, the most effective way to find the right switch is an integrated search by settings. It is a universal solution for any Xiaomi model, from budget Redmi to flagship Mi.
At the top of the Settings screen is the search bar (magnitude). Click on it and type in the request «SIM» The system will instantly filter out the available options and give you a result "Protection". SIM-cards” or “Blocking SIM». This method works faster than manual bruising of points.
What to do if the search does not find the setting?
Search also helps avoid errors when the names of items in different versions of MIUI are different, for example, in some builds it is “SIM Security”, and in others it is “SIM Settings”.
The solution: lock and forgotten codes
The most common problem is that the user forgets the current password and can neither disable the verification nor turn it on again, SIM-The card is blocked and the phone will request PUK-It's an eight-digit key that you can't pick up by brute force.
PUK-The code is on a plastic card that came with the SIM card. If the card is lost, the code can be found in the operator's personal account (MTS, Beeline, MegaFon, Tele2) You can also find out the number or rate section by calling customer service from another phone.
⚠️ Attention: Never enter PUK-code randomly. You only have 10 attempts. After 10 errors. SIM-The card will be permanently blocked and cannot be restored - you will have to go to the communication salon for a new plastic.
If you don't remember if you have protection on, try entering any code (e.g. 0000) if the system writes "False PIN", it means that the protection is on, but the code is different, if the system says "PIN is disabled" or just misses the input without errors (in some interfaces), then the function is already deactivated.
- 🔒 Three PIN errors lead to a request PUK.
- 📞 PUK-The code can be found by the operator for free.
- ❌ Ten input errors PUK-code-break SIM-map.
- 🔄 After successful entry PUK The system will ask you to set a new PIN.
Nuances of working with two SIM-map
Xiaomi smartphone owners often use two numbers at the same time.It is important to understand that security settings apply to each number. SIM-Disabling the PIN code on the first SIM will not affect the second one.
If you want to remove the password request when you turn on your phone, you will have to perform the procedure twice: first for slot 1, then for slot 2.The system will request codes sequentially at each boot until both switches are turned off.
When you change the places of the SIM cards in the tray (if you physically rearranged them), the settings can "tie" to the slot, not the card, depending on the version of Android. In modern versions of HyperOS, the binding goes to the card chip itself, so the settings follow the SIM.
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PIN settings are stored in the profile of each individual SIM-When you change slots, you don't reset, but the order of requesting codes when you turn on may change.
Impact of System Update on SIM Settings
Users often wonder if these settings are reset after a firmware update. In most cases, a global MIUI update or a transition to HyperOS saves user configurations, including a disabled PIN.
However, if the update is major (like switching from Android 13 to Android 14) or you perform a factory reset, the phone can return standard security options. SIM-In this case, you will have to re-enter the code once to confirm the disconnection.
It is recommended to always check the operation of important functions after a major software update. This will take a minute, but will save you from the surprises when the phone suddenly requires a password after rebooting at the wrong time.