Modern smartphones accumulate numerous wireless network connections over time. Over time, this can lead to address conflicts, authorization errors, or simply a slowdown in connecting to the router. If your Android If you've stopped seeing your home network or it's constantly losing signal, it's often necessary to completely clear your saved connection data.
Reset procedures can range from simply deleting a specific network to completely restoring the network's system settings to factory defaults. In this article, we'll cover all available methods for resolving connection issues, from basic methods to a hard reset via the engineering menu.
It's important to understand that deleting Wi-Fi profiles won't affect your personal photos, contacts, or apps. This is a safe operation designed solely to fix network errors in the operating system. AndroidLet's look at the basic methods that will help you restore a stable connection.
Basic reset via the settings menu
The easiest and safest way to troubleshoot connection errors is to manually "forget" the problematic network. This method is suitable if you're having trouble connecting to a specific router, for example, after changing the password or after your ISP upgraded the hardware.
To perform this operation you need to go to the section Settings your device. Next, select the option Wi-Fi or Connections, depending on your smartphone's OS version. A list of all available and previously saved networks will be displayed here.
Find the network you're having trouble with in the list. Tap it and select "Delete" or "Forget Network." Your phone will then completely delete the saved security key and IP settings for this access point.
- 📱 Open Quick Settings and tap and hold the Wi-Fi icon.
- 🗑️ Click the gear next to your network name.
- ❌ Select “Delete network” or “Forget”.
- 🔄 Please re-enter your password to re-authorize.
⚠️ Note: After deleting the network, you will be prompted to re-enter the password. Make sure you have the current access details, especially if your router is sharing a guest network with dynamic access.
This method is effective in 80% of cases where the problem stems from desynchronization of encryption keys between the phone and the router. If the problem persists, it's worth exploring more advanced settings.
Reset all network settings on Android
If deleting one network doesn't help, it's possible that the system has accumulated configuration errors across all network interfaces. The "Reset Network Settings" function returns Wi-Fi, Bluetooth, and mobile network settings to their factory defaults. This is a more drastic, but often necessary, step.
To perform a reset, go to Settings → System → Reset settingsIn some models Samsung or Xiaomi This option may be located in the "General Settings" or "Connections" section. Look for the "Reset Wi-Fi, Mobile, and Bluetooth" option.
The system will warn you that all saved Wi-Fi networks will be deleted and paired Bluetooth devices will be unlinked. Mobile settings (APN) will also be reset to your carrier's default values. This will not delete your personal files.
☑️ Checklist before resetting the network
After confirming the action, the phone may reboot. Upon reboot, you will need to reconnect to your home Wi-Fi and possibly set up internet access for your mobile network if it wasn't automatically activated.
- 🔧 Go to the "System" or "General Settings" menu.
- 📉 Select "Reset" or "Backup and reset".
- 🌐 Click "Reset network settings".
- ✅ Confirm the action with the screen unlock code.
⚠️ Please note: Mobile operators periodically change their access point names (APNs). If your mobile internet still doesn't work after resetting your connection, please contact your operator's website to obtain the latest APN settings.
This method is universal solution For most software glitches related to the communication module. It clears the DNS cache and resets static IP addresses that may conflict with the current network.
Using the engineering menu to reset
For advanced users who find standard methods ineffective, a hidden engineering menu is available. Here, you can perform a more detailed radio module reset. Be careful: changing unknown parameters may cause instability in the device.
To access the menu, open the Phone app and enter the special code. For most chip-based devices MediaTek This ##3646633##, and for processors Qualcomm often used ##4636##Codes may vary depending on the manufacturer.
##4636##In the menu that opens, select "Information" or "Phone Information." Here you'll find options for switching network modes or resetting the radio module. However, a primary Wi-Fi reset is rarely performed here; more often, it's used to change network priority (LTE/GSM).
What to do if the code doesn't work?
Many manufacturers (e.g., Huawei, Xiaomi) block access to the engineering menu in global firmware versions. In this case, try installing the Engineering Mode Connector app from the Play Market, which may unlock hidden features.
Using the engineering menu requires care. Changing the "Set Preferred Network Type" setting to an incorrect value may result in the complete loss of cellular signal.
- 📞 Enter the access code in the Phone app.
- ⚙️ Go to the "Phone Information" tab.
- 📡 Find the section related to the radio interface.
- ⚠️ Do not change the values if you are not sure of their purpose.
This method should only be used if you are certain that the problem lies in the modem drivers or radio module, and standard Android tools do not work.
Reset via ADB and computer
If the phone interface is blocked or not working properly, you can reset the network settings from a computer using USB debugging and a utility ADB (Android Debug Bridge). This method requires a PC and the device driver installed.
First, you need to enable developer mode on your phone. To do this, tap "Build number" seven times in the "About phone" section. Then, in the "Developer options" menu, enable "USB debugging."
Connect your phone to your computer using a cable. Open the command prompt on your PC in the ADB folder and enter the command to reset network settings. This is the same as selecting "Reset network settings" from the menu, but it's performed programmatically.
adb shell settings reset wifiYou can also use the command to completely reset all settings, but this will erase all data, so we'll focus on Wi-Fi. The above command will clear the list of known networks and reset the wireless adapter.
⚠️ Important: For ADB to work, connections from this computer must be allowed on your phone. When you first run the command, a debugging permission prompt will appear on your smartphone screen. You must confirm this permission.
The ADB method is especially useful if your phone's touchscreen is partially broken and you can't access the menu items you need. It's a powerful tool for remote administration devices.
Comparison of reset methods
To help you choose the right method, we've prepared a comparison chart. It will help you assess the risks and necessary steps for each Wi-Fi recovery method.
| Method | Complexity | Risk of data loss | Efficiency |
|---|---|---|---|
| Forget the Network | Low | No | Average (for one network) |
| Reset network settings | Average | Wi-Fi/Bluetooth passwords only | High (system errors) |
| Engineering menu | High | Average (if error occurs) | High (modem problems) |
| Reset via ADB | High | No (networks only) | High (if USB is working) |
As the table shows, for most users, the standard network settings reset via the phone menu remains the optimal option. It combines security and high efficiency.
Common problems after a reset and their solutions
After performing the reset procedure, users may encounter a number of common issues. For example, the phone may stop automatically connecting to known networks or may have trouble obtaining an IP address.
Often, the problem is resolved by simply rebooting the router. Power off the router for 10-15 seconds, then power it back on. This will reset the ARP table on the router and assign a new address to the phone.
If your phone displays "Obtaining IP address" and then drops the connection, try changing the IP settings for your network from "DHCP" to "Static" in the Wi-Fi settings. Enter the address manually, for example, 192.168.1.150, gateway 192.168.1.1 and DNS 8.8.8.8.
- 🔌 Restart your router and phone at the same time.
- 🔢 Try setting a static IP address.
- 🛡️ Disable certificate verification in advanced Wi-Fi settings.
- 📶 Switch your router's frequency from 5 GHz to 2.4 GHz (or vice versa).
In some cases, antivirus applications or VPN services may block the connection after resetting network stacks. Check if you have "Protection on Public Networks" enabled in your third-party software.
FAQ: Frequently Asked Questions
Will resetting Wi-Fi delete my photos and contacts?
No, "Reset Network Settings" or "Forget Network" only affects your connection configuration. Your personal files, apps, contacts, and messages will remain completely safe.
Why doesn't my phone see any networks after a reset?
This may indicate a hardware fault with the antenna module or a critical driver error. Try rebooting the device. If the network list is empty even after rebooting, a firmware update or repair may be required.
Do I need to re-enter passwords for all Wi-Fi networks?
Yes, when you perform a full network reset, your phone deletes all saved profiles. You'll have to re-enter passwords for all home, work, and public networks you want to connect to.
Can a virus interfere with Wi-Fi connection?
Theoretically, yes, malware can change network settings or proxies. Resetting network settings often helps eliminate such software interference, returning the configuration to its original state.