Modern multimedia messaging, or MMS, has ceased to be the main way to share photos, giving way to popular messengers, but they continue to work in the background, consuming mobile traffic. Owners of Xiaomi, Redmi and POCO devices often face a situation where the phone automatically downloads heavy pictures or videos coming through a standard messaging application, which can lead to an unexpected consumption of the Internet package, especially in roaming.
Disabling this feature completely at the software level requires understanding how the Android operating system and the MIUI shell handle multimedia content. There is usually no simple off switch in global settings, so a comprehensive approach is needed, including changing access point parameters and working with specific applications.
In this article, we’ll take a look at all the ways you can block automatic downloads and media reception so you can have full control of your traffic, learn how to set up an APN hotspot to disable the MMS protocol, how to limit background application activity, and what hidden settings can help with this task.
Why MMS Keep Coming and Spending Traffic
The main reason users want to disable MMS is because of the way the multimedia protocol works. Unlike conventional SMS, which uses a network signal channel and does not require the Internet, multimedia messages always use mobile data (3G/4G/5G) to receive content.
Even if you have Wi-Fi turned off, the smartphone will automatically switch to the mobile network to download images, which happens at the system services level, and often the user will only find out about this after receiving a notification from the operator about the debiting of funds or exhausting the traffic limit.
In addition, messenger apps from carriers or pre-installed message systems on Xiaomi may have their own autoload settings that ignore general limitations. It is critical to understand that disabling mobile data will completely stop MMS, but also deprive you of access to the Internet in general, so more subtle settings are needed.
- 📉 Automatic download of content without the user’s knowledge when the mobile Internet is turned on.
- 💸 Write-off of funds for roaming tariffs or separate tariffs for MMCs, if they are not included in the package.
- 📱 Background activity of the Messages system application that initiates a connection to the operator’s server.
⚠️ Note: When you disable MMS, you will stop receiving images and voice messages from subscribers of other operators and landlines that do not use Internet messengers.
Disable MMS via APN access point settings
The most reliable and technically competent way to prevent a phone from sending and receiving multimedia messages is to edit the access point parameters (APN), which is where the servers through which MMS traffic passes are prescribed.
You need to go to the settings menu first. Open the settings, then select the item. SIM-Maps and mobile networks. Next, you need to choose active networks. SIM-map, if there are two, and find the access point section (APN).
In the list that opens, select your current access point (usually marked with a green or blue dot). At the bottom of the screen, you will see a list of options. Find a field called APN type or APN type. In standard form, it can say default,supl,mms.
☑️ Checking settings APN
Your task is to remove the word mms from this list, leaving only default,supl (or default,supl,xcap). After changing the field, be sure to click the Save button (usually in the three-dot menu in the upper right corner or bottom panel).
If deleting a word from the list doesn't help, you can create a new hotspot. Click "Create a new APN" or "Add", enter any name in the "Name" field, such as "NoMMS", and enter only default in the "APN Type" field. After saving, activate this new profile.
Blocking through messaging application settings
The second front of the work is the application itself, which processes incoming messages. Xiaomi smartphones can use different "callers" and SMS-Clients: standard MIUI Messaging or Google Messages.
The logic in Google Messages is this: click on the profile avatar in the top right corner, select Message Settings, then go to RCS Settings (or Chat). Here you can turn off the RCS Mode feature, which will put the multimedia sending to the normal MMS mode, which we have already blocked through APN, or completely disable the data transfer for chat.
If you're using a standard Xiaomi app, open it, click three dots in the corner and select Settings.Look for Multimedia Messages (MMS). There's often a "Supploit" or "Download only over Wi-Fi" switch here. Disabling autoboot will prevent traffic from going down until you manually open the message.
| Parameter | Standard MIUI application | Google Messages |
|---|---|---|
| Location of settings | Three points → Settings → MMS | Avatar → Settings → chat (RCS) |
| Autoboot | There's a separate switch. | Depends on the RCS settings |
| Wi-Fi restriction | Present. | Not explicitly present. |
Also worth checking is the app permissions. Go to Settings → Apps → All apps. Find your messaging app, select Data Use, and turn off the Mobile Data slider. This will completely prevent the app from surfing the internet via a SIM card, but SMS will come.
Use of the traffic saving regime
The Android operating system offers built-in mechanisms for tight control of Internet consumption, which effectively block MMS. Traffic saving mode is a “heavy artillery” that prohibits background data transfer for all applications except those added in exceptions.
To activate this mode, go to Settings → Connection and sharing (or «SIM-maps and mobile networks») → Traffic savings. Turn on the switch. Now no application can use the mobile Internet in the background without your knowledge.
However, if you want messengers (WhatsApp, Telegram) to work and MMS doesn’t, this method may be too crude, and then you’d better use the Background Limitation feature for a specific message application, as described in the previous section.
Impact of flight mode on MMS
It is important to note that with traffic savings enabled, you may not receive notifications of new messages until the screen is unlocked or connected to Wi-Fi.
⚠️ Warning: Enabling global traffic savings may result in a delay in receiving notifications from banking applications or delivery services unless they are added to the exclusion list.
Specific configuration for different operators
Different mobile operators use different gateways to transmit multimedia content. Sometimes the standard APN settings that come with a SIM card contain specific parameters, blocking which may require a personalized approach.
For example, some operators have a Proxy or Port field in the APN settings filled for MMS. If you clear the APN Type field but leave the proxy, the phone may try to use it. It is recommended that you either reset the APN settings to factory settings (menu button → Reset) and then immediately remove the "mms" from the type, or manually check that the proxy fields are empty if you do not use them for other purposes.
Special conditions may apply for corporate tariffs or old archival plans, in which cases changing the settings on the phone may not be enough, and you will need to contact the operator’s support team to turn off the MMS service on the network side.
- 📡 Check the current settings APN on the official website of your operator.
- 📞 Make sure that the number does not activate the service of blocking incoming MMS on the operator side.
- 🔄 After the change of settings APN Always restart your smartphone to apply changes.
💡
If you travel abroad frequently, create a separate profile. APN name "Roaming_No_MMS", field-field MMSC, MMS Proxy and MMS Port. Switch to it before you go.
Frequent problems and ways to solve them
Xiaomi users may experience settings resetting themselves after a system reboot or upgrade, which is associated with aggressive memory optimization or synchronization of operator profiles.
If the APN settings don't work, try this method: create a new access point from scratch without editing an existing one. Give it a unique name, fill in only the required fields (APN, username, password if needed), and type only default. Then forcefully select that new point in the list.
Another problem is that you have two SIM cards, and often you only have one of them. SIM-card if you plan to use it for the Internet or to receive messages.
In rare cases, cleaning the cache of the Telephony or Settings app helps. Go to Settings → Apps → All Apps → (three dots) → Show system processes. Find Phone Services, select Memory and click Clear. After that, restart the device.
💡
The most stable solution is to create a new APN profile without MMS settings and remove the word “mms” from the access type, rather than simply editing the current profile.
Conclusion and final recommendations
Disabling MMS on Xiaomi smartphones is an effective way to protect your budget from unforeseen mobile internet costs. The most reliable method is to combine editing the APN hotspot and limiting background data for the messaging app.
Remember that completely disabling the MMS protocol, you will not be able to send and receive “pictures” through a standard SMS. To communicate, use Internet messengers that allow you to monitor the traffic and quality of the transmitted files.
Check your settings regularly after MIUI updates, as they can return to factory values determined by the carrier. Control of access points gives you full control over what data passes through your smartphone.