How to unlock a number on Xiaomi: the complete guide

Owners of smartphones Xiaomi, Redmi and Poco often face a situation when after buying the device from hand or bringing it from abroad, the phone refuses to work with the usual devices. SIM-The screen displays a message to enter an unlock code or a notification that the device is tied to another operator, a phenomenon known as regional locking or carrier binding.

These restrictions are imposed by manufacturers or operators to tie customers to a specific plan or region of sale, but for the end user, this becomes a serious obstacle, especially if you are in another country or just want to change your SIM card, the process of removing these restrictions requires understanding how the IMEI protection system and the MIUI or HyperOS software shell work.

In this article, we will take a look at all the available solutions, from official requests to operators to more complex technical manipulations, and it is important to understand that unlocking is a process that can have different consequences for the guarantee and stability of the system, so it should be approached with the utmost care and complete information.

Reasons for blocking SIM-Maps on Xiaomi devices

Before taking action, you need to clearly understand the nature of the restriction. Most often, the locking of a number on Xiaomi is not due to a breakdown, but due to software restrictions implemented at the firmware or server level of the operator. The main identifier in this process is IMEI (International Mobile Equipment Identity), a unique code assigned to each communication module.

There are several scenarios in which a user may be required to unlock. The most common case is the purchase of a device that was sold by a carrier (e.g., Vodafone, Orange, T-Mobile) at a discounted price, subject to the conclusion of a long-term contract. If the previous owner did not comply with the terms of the contract, the phone remains locked.

⚠️ Warning: Buying locked phones on the secondary market without status check IMEI The device may be reported as being stolen or have unpaid bills, resulting in a complete lockdown by the operator.

Another reason may be regional binding: Some Xiaomi models designed for China or India may have software restrictions on working with SIM cards from other regions when first turned on, and Mi Account Lock, which is often confused with blocking a SIM card, but is actually a protection against theft of the Xiaomi account itself, is also worth mentioning.

Technically, the lock is implemented through a database check, which enters a unique number of the device. SIM-The phone sends a request to the server or checks the local list of prohibited identifiers. GSM/LTE/5G limited until a special unlock code is entered (NCK — Network Control Key).

Diagnosis: How to check the status of the block

The first step before you try to unlock a number on Xiaomi is to make a precise diagnosis, so don't blindly enter codes or flash the device without knowing the type of lock, you first need to know the IMEI of your device, and you can do this by dialing a universal command in the Phone app.

Dial *#06# and press the call button. The screen will display all the device's SIM cards. Write down the IMEI number, which you'll need to check in databases. If you have a dual-symbol device, check both IDs, as the lock can be tied to a particular slot.

Then you need to check the status of the device through specialized services. There are many online databases that aggregate information from operators around the world. Type your IMEI into the search box of such a service. The result of the check will show whether the device is blacklisted or has a Locked status.

• 📱 Manufacturer's official website: Some brands have their own warranty and blocking status check pages.
• 🌐 Third-party services: Sites like IMEI.info or SnipeIT provide detailed information about the origin of a device.
• 📞 Request to the operator: if you know which operator owned the SIMKA, you can contact him with a request about the status of the device.

It is important to distinguish between IMEI lock and Mi lock. If the phone requires a password from the Mi Account when turned on after a reset, this is protection against theft, and unlocking the SIM card has nothing to do with it.

Official methods of unlocking through the operator

The most reliable and legal way to unlock a number on Xiaomi is to contact the operator who installed the lock, and if the device was purchased legally but is bound to a contract, the operator is required to provide the unlock code after certain conditions are met, usually full payment of the cost of the phone or the expiration of the contract.

You will need to collect a package of documents to begin the procedure, operators strictly monitor security and require proof of ownership of the device, in most cases you must provide the original purchase check, the contract with the operator and the passport details of the owner for whom the contract is issued.

The application process can take anywhere from a few days to a few weeks, the operator checks the history of the device, the absence of debt and the validity of the request, and once approved, you will be provided with a unique unlock code» SIM-map.

It’s worth noting that some carriers charge for this service, especially if the contract has expired or the device was purchased long ago, but this method ensures that once unlocked, the phone will work steadily and you will not lose the ability to receive software updates.

⚠️ Warning: Never use fake checks or documents to unlock. Operators have access to global databases and can permanently lock the device on the Internet. IMEI, if fraud is detected.

Use of services to unlock by IMEI

If the official path is closed (for example, the operator is bankrupt, the device is found, or the contract cannot be executed), users often turn to third-party unlock services, these services work through direct interaction with the operators' databases or use special algorithms for generating code.

The market for such services is huge, and quality ranges from professional platforms to outright scammers. Professional services require payment only after proof of the ability to unlock. They request IMEI, a device model (such as the Xiaomi Redmi Note 12) and the country of operation.

The process is usually as follows: you leave a request, the service checks the database, reports the price and terms. After payment within a specified time (1 hour to 3 days), you receive the NCK code by email. This code is entered into the phone when you request to unlock the network.

When choosing a service, pay attention to reviews and a refund guarantee. A good sign is the ability to pay through reliable payment systems and the availability of support services. Avoid sites that require prepayment without any guarantees or IMEI check before paying.

Technical methods: firmware and engineering menu

For advanced users, there are more sophisticated methods to modify the software part of a device, which are often used when software locks are sewn into firmware or require the reset of regional flags, but it is important to understand that such actions carry risks.

One method is to change the region through the engineering menu, so on some Xiaomi models with MediaTek processors or old Qualcomm, you can change the modem settings. To enter the engineering menu, you use the code ##3646633## (not all models), you need to find the Telephony tab and change the regional anchor settings.

A more radical method is to flash the device to the global version (Global ROM) instead of the Chinese (China ROM) or custom firmware. MIUI global firmware usually does not contain rigid bindings to operators. This requires unlocking the bootloader, which can be officially done through the Xiaomi website, but you will have to wait 7 days.

• 🔓 Unlocking the bootloader: a mandatory step for installing custom firmware, removes many software restrictions.
• 🌏 Changing the region: transferring the device to a region that does not conflict with yours SIM-card.
• 🛠️ Modem patches: Install modified modem files that ignore lock check.

In addition, on some models with newer versions of Android and HyperOS, these methods may not be effective due to enhanced security.

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Before any firmware manipulations, be sure to make a full backup of data to the cloud service or computer, since the process of unlocking the bootloader completely erases all data from the phone.

Frequently Asked Questions (FAQ)

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The safest and most reliable way to unlock a number on Xiaomi is to request an official request from the operator-owner. Alternative methods carry the risk of data loss or complete locking of the device.