Users of Xiaomi, Redmi and POCO smartphones often encounter an intrusive system window that appears immediately after the device is turned on or the SIM card is removed.This pop-up menu offers you to choose your preferred type of communication or adjust network settings, which is annoying if the configuration is already installed.The constant appearance of this dialog box disrupts the comfort of using the gadget and distracts from basic tasks.
The problem is that the MIUI shell, or its modern version of HyperOS, automatically detects changes in the status of the communication module, and the system tries to suggest that the user optimize the settings, but in most cases these suggestions are redundant, and fortunately, the developers have provided the ability to completely deactivate this functionality through hidden or standard interface settings.
In this guide, we will discuss all the known ways to fix this problem, how to find the right switch in the settings menu, how to use the engineering menu for advanced users, and what third-party applications can help in automating the process, and we will also touch on the topic of notifications from the carrier itself, which are often confused with system windows.
The reasons for the appearance of system windows on Xiaomi
The main reason for the appearance of annoying windows is the algorithm of the communication module. SIM-If the system detects a discrepancy between the current network settings and the saved profile, it initiates the launch of ServiceApp. This system component is responsible for basic communication with the cellular operator.
Users often confuse the system menu of choice SIM-But the way they work is different, the system window requires interaction to close, whereas the advertising just informs. It's important to understand that turning off one doesn't always eliminate the other. In some cases, the problem is the cache error of the network.
⚠️ Warning: Do not remove system applications associated with phone and messages in an attempt to get rid of windows.This can lead to complete loss of communication and inability to make calls.
There are several types of triggers that trigger this process, depending on the firmware version and the region for which the device is released. Global versions of MIUI Global behave differently than the Chinese MIUI CN. Understanding the source of the problem helps you choose the most effective method of solving.
Disconnection through standard system settings
The safest and most recommended method is to use the built-in shell functionality. In recent software versions, the path to the desired option may differ slightly, but the logic remains the same. SIM-map.
To start, open the main settings menu for your device, find the partition that connects and transfers data, depending on the version of the interface, it can be called «SIM-Maps and mobile networks, or simply Mobile Network, is where the key management parameters of the communication module are concentrated.
- 📱 Go to Settings and select a paragraph SIM-maps and mobile networks.
- 🔍 Find the option “Show notification if available” SIM-maps”** or similar wording.
- 🔘 Move the switch to the inactive position to prevent the system from displaying the dialog box.
- ✅ Restart the device to apply changes and check the result.
If there is no standard switch, try to find the Advanced Settings section inside the menu. SIM-Sometimes the option is hidden there under the name "Operator Notifications" or "Service Messages." Once you turn off, the system will stop interrupting your work with unnecessary requests.
☑️ Checking network settings
Using the Engineering Menu to Disable
For a deeper setup, when standard methods don't work, you can use the engineering menu, which is a hidden part of the system that's designed to test the hardware, and be careful, changing the unknown parameters here can affect the stability of the radio module.
To enter the engineering menu, open the Phone app and type a special code. For most Xiaomi devices, this is the combination ##4636##. Once you enter the code, the menu will open automatically. You will need the Phone Information section.
Inside this section, scroll down to find the Set Preferred Network Type. Although this option is responsible for the network type, resetting the radio module settings through a different standard (such as LTE Only) and returning back sometimes clears the persistent notification bug.
| Parameter | Description | Recommended value |
|---|---|---|
| Phone Information | Basic information on network status | No change. |
| Set Preferred Network Type | Selecting a priority network type | LTE/TD-SCDMA/WCDMA |
| Ping Test | Verification of server availability | Not required |
| Turn off radio | Complete shutdown of the radio module | Off. |
⚠️ Attention: Do not change the value IMEI or other unique identifiers in the engineering menu, which may result in the operator locking the device.
After manipulations in the engineering menu, it is recommended to perform a complete reset of network settings, which will not delete your personal data, but will return the connection settings to factory values, which often eliminates software conflicts that cause unnecessary windows.
What if the code doesn't work?
Managing communications operator notifications
Often users want to disable not the system menu, but advertising mailings from the mobile operator, which come in the form of a mobile phone. SMS Flash-SMS, or pop-ups. These messages are not part of the interface. MIUI, a) broadcast through the operator's channels.
To block such messages, you need to change the settings in the Messages app. Open the standard SMS app, click three dots in the corner of the screen and select Settings. Find the "Additional" or "Accounter Notifications" section.
- 🚫 Turn off the Operator Notifications option** if it is active.
- 📩 In the settings SMS Find the item "Service messages" and prohibit their display.
- 🔕 Flash-SMS (full-screen pop-ups) may require sending STOP-commands for short operator number.
It is also worth checking the notification settings for a particular application, Services and Feedback or Mi Credit. Sometimes it is through these system services that operators transmit advertising content. Disabling notifications for these applications in the Applications → All Apps section will help clear the status bar.
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Use third-party SMS management apps like Textra or Google Messages, they often have more flexible filters to block service messages from carriers.
Resetting network settings as a radical method
If none of the softer methods worked, the option is to completely reset the network settings, which will bring all Bluetooth, Wi-Fi and mobile settings back to factory status, and it is an effective tool to combat deep software errors.
You can reset via the settings menu. Go to About Phone, then select Settings Reset (or find this item in the main system settings). Select Reset Wi-Fi, mobile and Bluetooth settings. Confirm the action by entering the unlock password.
Once you reboot, the device will re-register, you will need to re-enter the Wi-Fi passwords, but if the faulty configuration file was the cause, the persistent window problem should be gone forever.
⚠️ Note: Before resetting, make sure you remember passwords from your Wi-Fi networks as they will be deleted from the device’s memory.
In rare cases, the problem may be related to physical contact. SIM-Remove the tray, wipe the contacts of the card with a soft cloth and insert it back in, make sure the card sits tight and doesn't hang around in the tray.
Analysis of system applications and services
Hidden services often account for the appearance of various windows in Xiaomi's system. If you can't find the switch in the menu, you might want to limit the rights of a particular application. Most often, the culprit is hidden under the name com.android.phone or com.miui.securitycenter.
Go to the app settings, turn on system processes (usually through a three-point menu), find the Phone or Settings app, go to Notifications and carefully review the category list, and disable anything related to Recommendations, Tips, or Service Messages.
Also worth looking at is the Update Recipient or Mi Daemon app, which collects telemetry and can initiate network conditions checks, causing pop-ups, and limiting their background activity can have a positive effect on the cleanliness of the interface.
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Comprehensive disabling of notifications in all system applications related to phone and security, ensures getting rid of annoying pop-ups.