How to Disable Mobile Data but Keep Wi-Fi on Android: 5 Proven Methods

You want to save battery power, avoid unnecessary calls, or simply don’t need mobile Internet, but still want to stay connected via Wi-Fi? On Android This can be done in several ways, from standard settings to hidden functions in the engineering menu. The problem is that many users accidentally disable and Wi-Fi, and mobile communications simultaneously, losing access to the network completely.

In this article we will look at All current methods for disabling only mobile communications (2G/3G/4G/5G) while maintaining Wi-Fi operation, including nuances for different manufacturers (Samsung, Xiaomi, Google Pixel, OnePlus etc.). You will also learn how to avoid typical mistakes that lead to a complete loss of Internet, and what to do if after changes Wi-Fi stopped working.

Spoiler: the most reliable way is to use airplane mode with manual Wi-Fi activation, but it's not suitable for all scenarios. If you need to leave the ability to make calls through VoWiFi (Wi-Fi calling), see the section on alternative methods.

1. Standard method: disable mobile data in settings

The most obvious method is to disable mobile data through the notification panel or settings. However, there are pitfalls: on some devices, this may lead to a disconnection. Wi-Fi, if power saving mode is active or the "Automatically switch to mobile data" option is enabled.

How to do it right:

• 📱 Swipe down from the top edge of the screen to open the notification panel.
• 🔄 Find the icon mobile data (usually denoted as 4G, LTE or 5G) and tap on it. It should go out.
• 🔒 Make sure the icon Wi-Fi remained active (highlighted).
• ⚙️ If mobile data is not turned off, go to Settings → SIM cards & mobile networks → Mobile data and deactivate the switch.

⚠️ Attention: On devices Xiaomi (MIUI) and some models Samsung There is a "Smart Switching" function that automatically turns on mobile Internet if there is a signal Wi-Fi weak. Turn it off. Settings → Wi-Fi → Advanced → Smart Switch.

Is mobile data turned off in the notification panel?|Is Wi-Fi active?|Is Smart Switching turned off? (for Xiaomi/Samsung)|Have you checked that calls are not being blocked by your carrier?

-->

2. Airplane mode with manual Wi-Fi activation

This method is guaranteed to disable all mobile communications (calls, SMS, 3G/4G/5G), but allows you to manually enable Wi-Fi. Suitable if you need to completely "cut off" from the cellular network, but stay in touch via instant messengers (WhatsApp, Telegram) or VoIP.

Instructions:

1. Open the notification panel and tap on the icon Airplane mode (airplane 🛩️).
2. Wait 5-10 seconds until the network icons disappear (usually a cross appears on the signal indicator).
3. Turn on Wi-Fi through the same notification panel or in settings.

⚠️ Attention: On some devices (eg. Google Pixel with clean Android) after switching on Wi-Fi In airplane mode, the search for mobile networks may be activated automatically. To avoid this, after connecting to Wi-Fi Go back to Settings and manually disable the "Mobile Network" option in the section SIM cards.

What happens if you turn on Wi-Fi in airplane mode on an airplane?

Most airlines allow you to use Wi-Fi in airplane mode if your onboard system supports it. However, active search for networks (for example, when scanning for available access points) may violate safety regulations. Always check with the flight attendants for permission.

3. Disabling communication via the engineering menu (for advanced users)

If standard methods do not work (for example, on custom firmware or older versions Android), you can use engineering menuThis method requires caution—incorrect actions may disrupt the network.

Instructions for most devices:

1. Open the app Telephone and enter the combination:

   ##4636##

   (may be required on some devices) ##INFO##).

2. In the menu that opens, select Phone information or Phone Information.
3. Scroll down to the section Set preferred network type.
4. Select Wi-Fi only or No service (if there is no such item, select GSM auto (PRL) and then manually turn off mobile data).

⚠️ Attention: On devices with MediaTek (many models Xiaomi, Realme, Oppo) the engineering menu can be called EngineerMode and require additional rights. Do not change other options in this menu unless you are sure of their purpose!

4. Using network management applications

If you need flexible connection management (for example, turning off mobile data on a schedule or based on location), third-party utilities can help. The best options are:

• 🔧 NetGuard — a traffic blocker without root access. Allows you to disable mobile data for individual apps, while preserving Wi-Fi.
• ⏱️ Tasker — automatic disconnection of communication based on triggers (for example, when connecting to home Wi-Fi).
• 📡 Network Signal Info — signal strength monitoring and manual control of network types.

Example of setting in NetGuard:

1. Install the app from Google Play.
2. Enable the option Block mobile data in the main menu.
3. Add exceptions for apps that are allowed to use Wi-Fi (For example, WhatsApp, Chrome).

⚠️ Attention: Apps like NetGuard create VPN connection To filter traffic. This may conflict with some banking apps or corporate networks. Check compatibility before use!

5. Features for dual SIM devices

On smartphones with two SIM cards (Dual SIM) disabling mobile communications may work differently. For example, on Samsung Galaxy And Xiaomi Redmi Note Mobile data is tied to a specific SIM card, and disabling it does not affect the second one.

How to disable communication for one SIM while keeping Wi-Fi:

1. Go to Settings → SIM cards and mobile networks.
2. Select the SIM card for which you want to disable communication.
3. Disable the switches:
   • 📞 Voice calls (if you need to turn off calls),
   • 🌐 Mobile data.

Make sure that Wi-Fi turned on and working.

⚠️ Attention: On some devices (eg. OnePlus 8 Pro) disabling mobile data for one SIM card may cause a failure VoLTE (4G calls) on the second. In this case, only completely disabling airplane mode with manual activation will help. Wi-Fi.

6. Problems and solutions: why Wi-Fi doesn't work after disconnecting

Sometimes after manipulating the network settings Wi-Fi The connection stops connecting or becomes unstable. Common causes and solutions:

If none of the methods helped, check:

• 🔄 Is it not turned on? power saving mode (it can disable background data transfer).
• 🔧 Are there any restrictions for applications in Settings → Apps → Special access → Data usage.
• 📶 Is yours blocked? provider Wi-Fi access when mobile communications are disabled (relevant for some corporate tariffs).

How to check if your ISP is blocking your Wi-Fi?

Some operators (for example, corporate tariffs Megaphone or Beeline) may limit Wi-Fi access if mobile data is disabled on the device. To check this:

1. Connect to a different Wi-Fi network (for example, your home or public one).
2. If the Internet works, the problem is in the current network.
3. Check the tariff terms with your operator or in your personal account.

FAQ: Frequently Asked Questions

Is it possible to turn off only 5G, leaving 4G and Wi-Fi?

Yes, but it depends on the device. On most smartphones (for example, Samsung Galaxy S22 or Google Pixel 7) you can select your preferred network type in Settings → Mobile network → Network type. Select LTE/3G/2G (auto)to disable 5G. Wi-Fi is not affected.

⚠️ On some devices (eg. iPhone or Huawei) 5G shutdown may result in switching to 4G with reduced speed.

Will turning off mobile data save battery?

Yes, but the effect depends on the conditions:

• 🔋 In areas with poor coverage (1–2 signal bars), turning off mobile communications can save up to 15–20% charge in 8 hours.
• 📶 In a good signal area (3G/4G/5G) the savings will be 3–7%.
• 🌐 If you are actively using Wi-Fi, the savings will be minimal (1–3%).

The maximum effect is achieved in airplane mode with Wi-Fi enabled.

Is it possible to receive calls via Wi-Fi after turning off mobile service?

Yes, if your operator and device support the technology. VoWiFi (Wi-Fi calling). To do this:

1. Make sure the feature is enabled in your SIM card settings (Settings → SIM cards → Wi-Fi calling).
2. Connect to a stable Wi-Fi network.
3. Check if your plan supports VoWiFi (check with your operator).

⚠️ On Android 10 and newer VoWiFi works even in airplane mode, if Wi-Fi is turned on manually.

Why did SMS messages stop coming after I turned off mobile data?

SMS messages are transmitted over the mobile network, so if the connection is completely disconnected (including 2G), they will not be delivered. Solutions:

• 📩 Use instant messengers (WhatsApp, Telegram) for messages via Wi-Fi.
• 📶 Enable mobile network for SMS only: in the engineering menu (##4636##) select GSM only (2G only).
• 🔄 Periodically turn on mobile data to receive SMS (for example, once an hour for 1-2 minutes).

How to turn off cellular data on Android Auto while keeping Wi-Fi?

Android Auto uses mobile data for some features (eg maps) Google Maps or streaming music). To disconnect but leave Wi-Fi:

1. Connect your phone to the radio via Wi-Fi (if supported).
2. Turn off mobile data in your phone settings. to connections to Android Auto.
3. In the settings Android Auto disable the option Use mobile data to download maps.

⚠️ No mobile data Google Maps will only work with pre-loaded maps.