How to update network settings on Android: a complete guide with instructions and life hacks

Network settings on Android is the basis for a stable Internet connection, fast data transfer and correct operation of mobile communications. However, over time, the parameters may become confused: the phone stops connecting to Wi-Fi, the mobile data works intermittently, and devices refuse to synchronize. In 80% of cases, the problem is solved by simply updating or resetting the network settings, but many users are afraid to do it themselves, for fear of losing important data or being left without communication altogether. Bluetooth-devices refuse to sync. In 80% of cases, the problem is solved by a simple update or resetting the network settings, but many users are afraid to do this themselves for fear of losing important data or being left without communication altogether.

In this article we will look at all possible ways to update network settings on Android from manual editing to a complete reset, including hidden functions for experienced users. You will learn how to return the network to factory settings without losing personal files, why Samsung, Xiaomi and Google Pixel require different approaches, and what to do if after the update the connection becomes even worse. And for those who love experiments, we have prepared instructions for working with ADB and hidden menus of the engineering mode.

Why update network settings on Android?

Network settings on a smartphone are not just a list of saved Wi-Fi networks. These include:

• 📶 mobile data configurations (APN, roaming parameters, priority of 4G/5G networks).
• 🔄 Parameters Wi-Fi (channels, standards 802.11a/b/g/n/ac/ax, proxy settings).
• 🔗 Bluetooth and NFC (device profiles, pairing cache).
• 🔒 VPN and proxies (certificates, traffic routing).

Over time, these data may conflict with each other. For example, after updating the firmware, the old ones no longer meet the operator’s requirements, and Wi-Fi begins to “fall off” due to a failure in the cache. Updating the settings helps: APN settings no longer meet the operator’s requirements, and Wi-Fi begins to “fall off” due to a cache failure DHCP. Updating the settings helps:

• ⚡ Eliminate "gray" areas of mobile network coverage.
• 🚀 Increase Internet speed by 30–50% (according to tests Speedtest).
• 🔄 Fix connection errors Wi-Fi (for example, “Authentication failed”).
• 🛡️ Protect against data leaks through outdated VPN profiles.

⚠️ Attention: If your smartphone is connected to a corporate network with individual certificates (for example, Cisco AnyConnect or Fortinet), resetting the settings will delete them. Before the procedure, check the settings with the IT department administrator.

Method 1: Soft reset of network settings (without data loss)

The most secure method that does not affect personal files, applications or accounts. Suitable for fixing minor failures, for example, when:

• 📱 The phone does not connect to a familiar Wi-Fi network, although the password is correct.
• 🌐 mobile data works only after a reboot.
• 🔊 Bluetooth-the headset connects, but the sound is interrupted.

Instructions for most smartphones (including Samsung Galaxy, Xiaomi Redmi, Google Pixel):

1. Open Settings → System → Reset (on some models the path may differ: Settings → General settings → Reset).
2. Select an item "Reset Wi-Fi, mobile network and Bluetooth settings" (or similar).
3. Confirm the action by entering PIN code or pattern key.
4. Wait for reboot (it will take 1–2 minutes).

Remember passwords for Wi-Fi networks (they will be erased)

Check your mobile account balance (sometimes you need to re-activate packages)

Disable VPN (if used)

Take a screenshot of the current ones APN settings (in case of manual recovery)-->

After rebooting, the phone will automatically connect to the saved networks, but some parameters (for example APN) may require manual configuration. If the problem persists, proceed to the next method.

Method 2: Manual APN update for mobile. Internet

APN (Access Point Name) is a “bridge” between your smartphone and the operator’s network. If the APN parameters are outdated or lost, the mobile data may work slowly or not work at all. You can update them manually:

Operator	APN name	APN address	Authentication type
MTS	mts	internet.mts.ru	PAP
Beeline	beeline internet	internet.beeline.ru	None
MegaFon	Megafon	internet	PAP
Tele2	Tele2 Internet	internet.tele2.ru	PAP

To update APN:

1. Go to Settings → Mobile network → Access points (APN).
2. Click on the three dots in the upper right corner and select "Reset to defaults".
3. If the automatic settings are not loaded, create a new APN using the data from the table above.
4. Save the changes and reboot the phone.

⚠️ Attention: On some firmware (for example, MIUI from Xiaomi) APN editing is blocked. In this case, only a complete network reset will help (see Method 3) or installing a third-party application like APN Settings.

MTS|Beeline|MegaFon|Tele2|Other-->

Method 3: Hard Reset

If a soft reset and editing the APN did not help, you will have to resort to “heavy artillery” - a complete reset of network parameters. This method deletes saved networks (Wi-Fi, Bluetooth), resets mobile data settings and can even affect operation. Use it only as a last resort! all saved networks (Wi-Fi, Bluetooth), resets mobile data settings and may even affect operation NFC. Use it only as a last resort!

Instructions for Android 12–14:

1. Open Settings → System → Reset options.
2. Select "Reset network settings" (on some devices the item may be called "Reset Wi-Fi, mobile network and Bluetooth").
3. Confirm the action by entering PIN or password.
4. After the reboot, configure the connections again.

On smartphones Samsung the path may be different:

Settings → Device maintenance → Reset → Reset network settings

What to do if after no network reset?

If after a complete reset the mobile data is gone, check:

1. Is the SIM card active (recharge the phone or move the card to another slot).

2. Is roaming enabled? (sometimes operators block the Internet without it).

3. Are APNs updated? (see Method 2).

If all else fails, contact your operator - your number may have data blocked.

⚠️ Attention: On devices with dual-SIM (two SIM cards), resetting the network may lead to a profile conflict. After the procedure, check the SIM priority for mobile data in Settings → Mobile network → SIM cards.

Method 4: Network update via the engineering menu (for advanced)

If standard methods do not work, you can try updating the settings via engineering menu (or Service Mode). This method is suitable for experienced users, since incorrect changes can lead to loss of connection.

Instructions for most smartphones:

1. Open the application "Phone" and enter the code:

   ##4636##

   (on some models Samsung used #0011# or #9900#).

2. In the menu that opens, select "Phone information" (or «Phone Information»).
3. Scroll down to the block «Set preferred network type» and select the current standard:
   • 📶 LTE/4G/3G auto — for most regions.
   • 🚀 NR/LTE/4G/3G auto —if supported 5G.
   • 📞 3G only —for areas with poor 4G coverage.

Click «Update» or «Refresh» (if there is such a button).

Return to the main menu and select «Run Ping Test»to check the stability of the connection.

On devices Xiaomi i Redmi the path to the engineering menu may be blocked. In this case, use the application MTK Engineering Mode (available in Google Play for chips MediaTek).

Method 5: Network update via ADB (for developers)

If you are familiar with Android Debug Bridge (ADB), you can update the network settings via the command line. This method is useful if:

• 🔧 You need to apply settings to several devices at the same time.
• 🛠️ Standard Android menus are not available (for example, due to an interface failure).
• 📊 Detailed network diagnostics are required.

Instructions:

1. Install ADB on your computer (you can download from the official Android website).
2. Connect your smartphone to the PC via USB and enable debugging in Settings → For Developers → USB Debugging.
3. Open the command line (cmd on Windows or Terminal on macOS/Linux) and enter:

   adb shell settings put global captive_portal_detection_enabled 0
   adb shell am broadcast -a android.intent.action.BOOT_COMPLETED
   adb shell svc wifi disable
   adb shell svc wifi enable

   These the commands will disable the capture portal check (which sometimes blocks Wi-Fi), restart network services and reconnect Wi-Fi.

4. To reset mobile data, use:

   adb shell am start -n com.android.settings/.Settings$DataUsageSummaryActivity
   adb shell svc data disable
   adb shell svc data enable

After running the commands, restart your phone. If ADB gives an error device unauthorizedcheck that a window has appeared on the smartphone screen asking for permission to debug.

Solving common problems after updating the network

Even after successfully updating the settings, problems may occur. of them and ways to eliminate them:

Problem	Possible cause	Solution
No mobile data	APN settings are lost	Update the APN manually (see Method 2) or request automatic settings from the operator (send an SMS with the text Internet to the number 5049 for MTS, 5100 for Beeline).
Wi-Fi connects, but the Internet does not work	Incorrect settings DNS or IP	In the Wi-Fi network settings, set "Obtain IP automatically" and "DNS by default".
Bluetooth does not find the device	Cache Bluetooth corrupted	Clear cache applications «Bluetooth» in Settings → Applications.
Weak 4G/5G signal	Non-optimal network standard	In the engineering menu (see Method 4) select LTE only or NR/LTE.

If none of the methods helped, the problem may be hardware (for example, a malfunction modem or antenna). In this case, contact the service center.

FAQ: Frequently asked questions about updating the network on Android

❓ After resetting the network, all saved Wi-Fi disappeared. How to recover them?

Unfortunately, resetting the network deletes all saved Wi-Fi passwords without the possibility of recovery. To avoid this problem in the future, use applications like WiFi Password Recovery (required root access) or synchronize passwords through your account Google (on some firmwares). You can also take screenshots of QR codes with passwords in advance (in the Wi-Fi network settings there is an option "Share").

❓ Is it possible to update the network settings without rebooting the phone?

Yes, but not all parameters will be applied immediately. For example, to update APN or Wi-Fi it is enough:

• 🔄 Switch "Airplane mode" for 10 seconds and back.
• 📶 Manually disable/enable mobile data or Wi-Fi.

However, to completely reset the network (for example, through ADB or the engineering menu), a reboot is required.

❓ Why did the mobile data become slower after updating Android?

This may be due to:

• 📡 Automatic switching to 3G (check in the engineering menu).
• 🔧 Incorrect APN (compare with the table in Method 2).
• 🛡️ Active VPN (disable it in settings).
• 📱 Background activity of applications (check in Settings → Applications → Data usage).

Also after major updates (for example, from Android 12 to 13) operators may introduce new tariff restrictions. Check with your provider for details.

❓ How to update network settings on Android without accessing the menu (for example, if the phone is locked)?

If the screen is locked and unlocking is impossible, they remain two options:

1. Via ADB (if USB debugging was previously enabled): connect the phone to the PC and execute commands from Method 5.
2. Via Recovery Mode:
   1. Turn off phone.
   2. Hold down the combination of buttons (usually Power + Volume Up, but on Samsung — Power + Volume Up + Bixby).
   3. In the menu Recovery select «Wipe cache partition» (this will not delete personal data, but will reset some network caches).

If all else fails, you will have to do hard reset (full reset of the phone), but this will delete all data.

❓ Does updating the network affect the operation of banking applications or two-factor authentication?

No, resetting network settings does not affects:

• 🏦 Installed banking applications (for example, SberBank Online, Tinkoff).
• 🔐 Two-factor authentication settings (for example, Google Authenticator or SMS codes).
• 📱 Accounts Google or other linked services.

However, if you use VPN or proxy to access banking services, you will have to configure them again. Also, after the reset, you may need to re-activate Push notifications in applications.