Buying a new smartphone or tablet on Android instantly confronts the user with the problem of connecting to home Wi-Fi if the router password is forgotten, lost along with a note, or is unknown to other family members.
However, modern versions of the operating system Android offer built-in mechanisms to solve this problem. Now you can easily share network access without entering complex character combinations manually. In this article we will analyze in detail all available methods, from standard functions to advanced tools for experienced users.
We will consider options that are relevant for most popular brands, such as Samsung, Xiaomi, Google Pixel and others. You will learn how to use scanning QR codes, synchronization via the cloud, and even gaining access to system files if standard methods are unavailable for some reason.
Standard method of transfer via QR code
Starting with version Android 10, a native function for generating QR codes for the current Wi-Fi networks. This is the fastest and safest method that does not require installing third-party software. You do not need to know the password itself; it is enough to have physical access to the device that is already connected to the network.
First, open the settings of your smartphone. Go to section Connections or Network and Internet, depending on the manufacturer’s shell. Click on the item Wi-Fito see a list of available networks. Make sure that your device is connected to the network for which you want to transfer the password.
Click on the gear icon next to the name of the active network. In the settings menu that opens, you will see a button Share or a QR code icon. When pressed, the system may require you to confirm your identity using a fingerprint, Face ID, or entering a screen unlock PIN.
- 📱 On screens Samsung Galaxy the button is usually located at the very bottom of the access point settings menu.
- 🤖 On pure Android (Pixel, Motorola) the QR code icon is located directly under the name of the network.
- 🇨🇳 In shells MIUI i HyperOS you need to tap on the name of the network to see the code.
⚠️ Warning: Do not take a screenshot of this QR code or send it to strangers. Anyone who scans this image will have full access to your local network without having to enter a password.
After the code appears on the screen, pick up the second device you want to connect. Open your camera app or built-in QR code scanner. Point the lens at the source code. A pop-up notification will appear on the receiving device's screen asking you to connect to the network. Click on it and the connection will be established automatically.
This method works flawlessly in most cases, but there is a caveat. If the receiving device has a very old version of Android (below 10), the built-in scanner may not recognize the code format. In this case, you will have to use a third-party scanner application from the store Google Play.
Automatic synchronization via Google Account
An even more convenient way that eliminates the need to scan codes every time is to synchronize passwords through the Google ecosystem. This function allows you to automatically transfer saved networks between devices linked to the same account.
The principle of operation is based on data encryption in the cloud. When you connect to a new network on the same phone, the password hash is stored in Google's secure storage. As soon as you log into the same account on another device, the system automatically pulls up a list of networks and connects to them when detected.
To activate this function, go to the phone settings and find the section Google. Select Autofill, and then Autofill from Google. Make sure the switch is active. Also check the synchronization settings in the section Accounts - category Passwords must be enabled.
It is important to understand the difference between simple synchronization and the Password Sharing feature. In the latter case, you can share networks with contacts in your phone book, even if they use a different Google account. However, for a basic transfer between your gadgets, a single login is enough.
If you changed the password on your router, delete the old network in the Wi-Fi settings on all devices before reconnecting. This will force the phone to save the new hash in the cloud.
This method has one critical limitation: it requires an active Internet connection on both devices at the time of initial setup. If you are trying to transfer passwords to a new phone that does not yet have access to the network, this method will not work until the first connection using any other method (for example, via mobile data or cable).
Using third-party backup applications
If the built-in tools for some reason do not work or you need to create a backup copy of all saved networks to transfer to a device with another operating system (for example, iOS in the future), you should turn to specialized software. There are many utilities in Play Marketdesigned to manage Wi-Fi profiles.
Most of these applications work according to a similar algorithm. They read system configuration files, generate a list of networks and allow you to export them into a convenient format. Some apps can create their own QR codes for each saved access point, which is convenient for mass distribution to guests.
Popular solutions include WiFi Password Viewer, WiFi Map and analogues. When choosing an application, pay attention to the permissions it requests. To work correctly, they often need access to geolocation and a list of installed applications, which is standard practice for network utilities on Android.
| Application name | Presence of advertising | Export to QR | Requires Root |
|---|---|---|---|
| WiFi Password Key | Yes | Yes | No |
| WiFi Map | Yes | Partly | No |
| ES File Explorer | Yes | No | Yes (for viewing) |
| WiFi Analyzer | No | No | No |
It is worth noting that free versions of apps often contain intrusive advertising that can block the interface. In addition, some functions, such as viewing hidden passwords in text form, may be blocked by the smartphone manufacturer without superuser rights.
Why do some applications not show the password?
The Android security system encrypts files with passwords. Without root access, the application sees only the network name (SSID), but cannot decrypt the security key (PSK).
Manual copying of system files (Root access)
For advanced users with rights root, the ability to directly access the system password storage is available. This method is the most universal, as it allows you to copy the configuration file and transfer it to any other device with a similar file structure.
The file containing all saved networks is usually located along the path /data/misc/wifi/wpa_supplicant.conf. In newer versions of Android, the path may be different, for example /data/misc/apexdata/com.android.wifi/WifiConfigStore.xml. To access these directories, you need a file manager with root support, for example Root Explorer or Solid Explorer.
The transfer process is as follows: you copy the configuration file from the old device, transfer it to the new one (via Bluetooth, cable or cloud) and replace it with an existing file in the same directory. After this, you need to reboot the device or restart the Wi-Fi service.
cp /data/misc/wifi/wpa_supplicant.conf /sdcard/wifi_backup.confThen the file wifi_backup.conf is transferred to the new device and placed in the original directory with a replacement. It is important to set the correct permissions for the file after copying, usually rw-rw-r-- (664), otherwise the system will not be able to read the configuration.
⚠️ Attention: Operations with system files require extreme caution. An error in access rights or file corruption may cause the Wi-Fi module to stop functioning until the settings are completely reset.
This method is not recommended for ordinary users, since obtaining root access will often void the warranty on the device and may break the operation of banking applications that use protection SafetyNet or Play Integrity.
Method with root access is the only way to massively transfer hundreds of networks between devices without scanning codes one by one.
Features of transferring to devices of different brands
Despite the common basis of Android, manufacturers greatly modify the interface and logic of network settings. What works on Pixelcan be hidden deep in the menu on smartphones Huawei or Oppo. Understanding these differences will save you time when searching for the right button.
On devices Xiaomi and Redmi with the MIUI shell, the QR code function is available, but sometimes hidden under a long press on the network name in the list, and not in the settings menu. In addition, the generated code can be protected by an additional password from the Mi Account.
Smartphones Samsung with the One UI shell offer one of the most convenient implementations. Here you can not only show the QR code, but also immediately save it in the gallery or send it via messenger as an image. In this case, the system automatically blurs part of the password in the picture for security purposes, but the code remains working.
Owners of devices Honor and older models Huawei may encounter a lack of native QR code generation function in older versions of EMUI. In such cases, the manufacturer recommends using a proprietary application HiLink or third-party utilities to generate a code based on a manually entered password.
☑️ Check before transfer
Solving common problems and connection errors
Even if all instructions are followed, users may encounter errors. The most common problem is "Connection failed" or "Authentication failed" after scanning the code. This is often due to incompatibility of security protocols between the old router and the new smartphone. If your router uses an outdated encryption standard, modern phones may block the connection, considering the network insecure. In the router settings (via the web interface), it is recommended to switch the security mode to
If your router uses an outdated encryption standard WEP or WPA/TKIP, modern phones can block the connection, considering the network unsafe. In the router settings (via the web interface), it is recommended to switch the security mode to WPA2-PSK (AES) or WPA3.
Another reason for failures is an IP address conflict. If you transfer settings to a device that was previously on this network, but with a different MAC address (MAC randomization function), the router may block the connection. Try selecting "MAC address type" in the Wi-Fi settings on your phone and setting the value to "Device MAC address" instead of "Randomized".
It is also worth checking whether MAC address filtering is enabled on your router. If the white list is activated, you will have to manually add a new device address to the router settings, even if the password is entered correctly.
⚠️ Attention: The settings interfaces for routers and phones are updated regularly. If you do not find the described items, check the official documentation of your device model or update the firmware.
In rare cases, forgetting the network helps. Go to Wi-Fi settings, select the problematic network and press Delete or Forget. After that, try to connect again using the QR code. This will clear the network settings cache and force the system to request the configuration again.
Can I transfer a password from Android to iPhone?
Direct transfer via QR code is possible since iPhone supports scanning Android standard Wi-Fi codes. However, automatic synchronization via Google Account does not work on iOS. You will need to scan the code with your iPhone camera and confirm the connection.
What to do if the QR code is not read by the camera?
Try increasing the screen brightness on the source device. Make sure there is no glare on the protective glass. If that doesn't work, take a screenshot of the code and open it in the Google Lens app or any third-party QR scanner from the gallery.
Is it safe to save passwords on Google?
Yes, Google uses end-to-end encryption to sync passwords. The data is protected with a key that is stored on your device. Even Google employees can't read your saved Wi-Fi keys in clear text.
How to find out your network password without root access?
Without root access, you cannot see the password in text form in the phone settings for security reasons. The only legal way is to generate a QR code and scan it with another device that can show the contents of the code (some scanners show the text before connecting).
Why does the Internet not work after transferring the settings?
Perhaps the new device has static IP settings that are not suitable for the current network. Go to the network settings, select "Advanced" and make sure that the IP settings are set to "DHCP" mode (automatic).