How to turn off SIM-Map on the phone Xiaomi: all working methods

Shutdown SIM-Xiaomi smartphones can require cards in a variety of situations, from saving battery power to temporarily switching to another operator, but many users face problems — the card continues to work after “disabling” in the settings, or the phone completely stops seeing the network. In this article, we will discuss all the current methods of deactivation. SIM, including hidden functions MIUI, We also explain why some methods don’t work on individual models.

It is important to understand the difference between software shutdown (via phone menu) and physical deactivation (extract or lock). PIN-The first option is suitable for temporary communication restriction, the second is for the complete cessation of card operation. We will also consider the nuances for devices with dual slot and hybrid designs (SIM + microSD, where disabling one card can affect the second card.

If you are planning to completely remove SIM-card from the system (for example, before selling the phone), you will need additional cleaning of the operator's data - we will talk about this in a separate section. POCO Black Shark will provide specific instructions, as their firmware may differ from the standard one. MIUI.

1.Switch off. SIM-maps through settings MIUI

The most obvious way is to use the built-in tools of the system, which works on all Xiaomi smartphones, including the Redmi Note 12, Xiaomi 13 and older models on the market. MIUI However, there is a caveat: such a disconnect does not always block the operator's background processes (for example, receiving a computer). SMS or USSD-request).

To deactivate the card:

1. Open the Settings app (cog icon).
2. Go to section. SIM-Maps and mobile networks (or mobile networks on some models).
3. Choose the right one. SIM-If there are two, they will be numbered as SIM 1 and SIM 2).
4. Move the slider Include SIM-map off.

After that, the network icon in the notification panel should disappear, and the card status will appear to say "Disabled".

• 📵 The card can remain active for emergency calls (112, 911).
• 📱 Some operators (e.g. Tele2) continue to charge subscription fees even if they are not SIM programmatically disabled.
• 🔄 After restarting the phone, the card can automatically turn on again.

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If the SIM-cards section and mobile networks are missing, try to enter the "SIM" request in the search by settings - the system will show a direct link to the desired item.

2. Lockdown SIM-map PIN-code

A more reliable method is to activate PIN-This will not only disable the card before entering the code, but also protect it from unauthorized use, a method especially useful if you are temporarily not using the phone (for example, left it for repair).

Instructions:

1. Go to Settings → Passwords and Security → SIM-card settings.
2. Select the desired SIM and enable the option of PIN-lock.
3. Enter the standard PIN (usually 0000 or 1234 if you haven’t changed it).
4. Confirm the change and restart the phone.

Now, every time the device is turned on, it will be requested PIN. If you enter it incorrectly 3 times, the card will be blocked, and you will need to unlock it. PUK-code (can be obtained from the operator).

Advantages of the method:

• 🔒 Complete locking of the card before entering the code (unlike software disablement).
• 📴 The operator will not be able to charge money for services, as the card is actually inactive.
• 🔄 After removing the card from the phone, the lock is maintained.

3. Physical extraction SIM-map

The most radical, but also the most reliable way is to completely remove the card from the tray, which is guaranteed to cut off communication with the operator, but it has its own nuances:

• 📱 On some Xiaomi models (e.g. Redmi) 9A) squash SIM It's a microSD slot, and if you take the card out, you risk losing access to memory.
• 🔧 To extract you will need a paper clip or a special key (comprised with the phone).
• ⚡ If the phone was turned on during retrieval, there may be an error No network – a reboot is required.

Step-by-step:

1. Turn off your phone (but not necessarily).
2. Find the SIM tray on the side of the device (usually on the left).
3. Insert the paperclip into a small hole next to the tray so that it moves out.
4. Take it out carefully. SIM-map and insert the tray back in.

Turn off the phone.

Prepare a paper clip or key

Check if there is any important data on the card (contacts, SMS)

Make sure the tray is not compatible with the microSD (if the data on the memory card is important)-->

If after retrieving the phone stopped seeing the second SIM (in two-sim models), try:

• Reset the device.
• Check if the tray is inserted correctly (sometimes it does not enter to the end).
• Update your network settings manually: Settings → SIM-map → [choose SIM] → Update profile.

4. Disable mobile data transmission for SIM

If you need to leave the card active for calls and SMS, but block mobile Internet, do the following:

1. Open the Settings. → SIM-maps and mobile networks.
2. Select the desired SIM and go to Mobile Data.
3. Turn off the mobile data slider.
4. For reliability, also disable Roaming (if you do not use it).

This is useful if:

• 📶 You are on roaming and want to avoid unexpected expenses.
• 📵 You have a limited rate and are afraid to exceed the traffic limit.
• 🔋 You need to save battery power (module) 4G/5G consumes).

Note that even if your mobile data is disabled, the card will remain active for calls and SMS. If you need to completely deactivate it, use the methods from the previous sections.

5. Reset network settings (to eliminate errors)

Sometimes. SIM-The card still works even after the settings are turned off, or the phone gives an error No service, and then resetting the network settings will help. SIM from one phone to another, and it is not.

How to perform the reset:

1. Open Settings → About the phone → Reset settings.
2. Select Network Reset (not to be confused with a full reset!).
3. Confirm the action (you will need to enter a pattern lock or PIN).
4. After restarting, re-set up your Wi-Fi and mobile network connection.

What's gonna happen:

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Network reset does not delete data from the phone (photos, contacts, apps), but requires reconfiguration of all wireless connections.

If after discharge SIM-The map still doesn't turn off:

• Check if you have operator profiles installed (e.g. for MMS) and can delete them in Settings → Apps → All Apps → [operator name].
• Update MIUI to the latest version – in old firmware there are bugs with SIM management.

6. Features for POCO and Black Shark

The POCO and Black Shark smartphones run on modified versions of MIUI, where the settings menu may differ, for example, in POCO F5, the SIM management section is called Dual SIM and Mobile Network, and in Black Shark 5, Mobile Communication.

Key differences:

• 🎮 There is no separate lock point on Black Shark. PIN — You need to look for it in Settings → Security → Additionally.
• 📱 V POCO single-out SIM The second can automatically become the main data (this is configured in Priority). SIM data-data).
• 🔧 Both types of devices do not have the function "Flight mode for one". SIM" (Unlike some Samsung phones).

If you can't find the right section, search by settings (the magnifying glass icon in the upper right corner).

• To lock PIN: PIN SIM.
• To disable the card: Disable the SIM.

7.What to do before selling a phone

If you are going to sell or transfer your Xiaomi, it is not enough to just disable it. SIM-You must completely delete the operator's data so that the new owner does not have access to your information.

Extract SIM-tray-card

Delete all messages (SMS/MMS) with confidential information

Reset network settings (delete APN and operator profiles)

Untie the number from accounts (Google, Xiaomi, banking applications)-->

Additional security measures:

• 🔐 Untie the phone number from the Xiaomi account: Settings → Xiaomi account → Account management → Security → Related numbers.
• 🏦 Remove all banking apps and cards from Google Pay/Mi Pay.
• 📧 Check if the number is linked to the mail or social networks (VK, Telegram, WhatsApp).

If you use an eSIM, it also needs to be deactivated via an operator menu or application (e.g., MTS Connect, Beeline.Profile). Unlike a physical SIM, the eSIM remains tied to the device even after resetting.

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After extraction SIM-card is recommended to perform a full reset of the phone (Settings) → The phone. → Resetting settings → Delete all data. It will delete all accounts and personal files.

Frequent Questions (FAQ)