Owners of flagship smartphones Samsung Galaxy S10 Often we encounter a situation where we need to connect a new device to our home network, but we've forgotten the password. Fortunately, the operating system Android in conjunction with the shell One UI Provides convenient tools for restoring access without having to access your router settings. This is especially useful when you don't have a computer with a cable connection nearby.
Modern methods allow you to extract saved security keys directly from the phone's interface. However, it's important to understand that functionality may vary depending on the firmware version and access rights. In this article, we'll cover standard methods, QR coding capabilities, and more complex technical approaches for advanced users.
Before you take action, make sure that your Samsung S10 Previously successfully connected to the desired network. Without first saving the configuration to the device's memory, it will be impossible to restore the key using standard tools. Let's look at the main ways to solve this problem.
Using the built-in QR code in One UI
The easiest and fastest way to find out your password is to use the QR code generation function built into the interface. SamsungThis method does not require installing third-party software and works on most current versions. AndroidThe system encodes network data into a graphic key, which also contains a text password.
First, you need to go to the wireless settings. Find the section Connections and select the item Wi-FiIn the list of available networks that opens, find the one you're already connected to or one you've saved. Click the gear icon to the right of the network name to open the detailed menu.
At the bottom of the screen you will see a button QR codeBy clicking on it, the system will generate an image. The password will be displayed in plain text directly below the graphic code.If the text is hidden by asterisks, you can take a screenshot and open it through the app. Google Lens or any similar scanner that recognizes text in an image.
⚠️ Attention: Don't send screenshots of the QR code to strangers. Anyone who scans the image will be able to instantly connect to your network without any additional verification.
This method is the most secure, as it doesn't require elevated system access rights. It's ideal for quickly transferring data to guests or connecting tablets.
View saved networks via Android settings
In newer shell updates One UI You can now view a list of all saved networks. This is useful if you're out of range of your router but want to remember your access key. The interface may vary slightly depending on the security patch year.
Go to the menu Settings, then select Connections and again Wi-FiScroll down to the bottom of the list. There may be an item there. Additionally or a list at once Saved networksSome versions of the software require you to click on the three dots in the upper right corner.
After selecting the desired network from the list, you will see a button QR code or Show passwordIf the system requires identity verification, use biometrics (fingerprint on the screen) S10) or a pattern. After successful authentication, the password will be displayed in clear text.
It's worth noting that this feature may be blocked by the administrator on some carriers or in corporate firmware. In this case, you'll have to resort to alternative methods.
Using Google Smart Lock and Cloud Sync
Company Google has implemented a Wi-Fi password synchronization feature between devices linked to the same account. If you have another phone on Android or the tablet where you previously entered this password, it can be found in the cloud.
To check, open your browser. Chrome on any device where you are logged into your Google account. Follow the path Settings → Autofill → Google Password ManagerThe list of saved data sometimes also includes keys for wireless networks if the corresponding synchronization option was enabled.
It is also worth checking the section Passwords in your Google account settings. While most of the data there is website logins, system Wi-Fi keys can also be archived there for recovery when changing devices.
- 🔑 Open Google Settings on any device.
- 🔑 Go to the "Security" or "Password Manager" section.
- 🔑 Search for "Wi-Fi" or the name of your network.
- 🔑 Copy the password and enter it on your Samsung S10.
The good thing about this method is that it is independent of the current phone model. Even if the screen S10 broken and you are using a temporary device, you will still have access to the keys.
Advanced Method: Root Privileges and System Files
For users with rights SuperUser (Root), access to system configuration files is granted. This is the most reliable method, which works even on very old versions of Android that don't support QR codes. However, it requires unlocking the bootloader, which may void the warranty.
The file containing all saved passwords is called wpa_supplicant.confIt is located in a hidden directory. /data/misc/wifi/To access it, you will need a file manager with superuser rights, for example, Root Explorer or Solid Explorer with the corresponding plugins.
adb root
adb pull /data/misc/wifi/wpa_supplicant.conf
By opening this file with a text editor, you will see a list of all networks in the format ssid (network name) and psk (cleartext password). Be extremely careful when editing other parameters in this file, as an error may prevent the Wi-Fi module from connecting.
⚠️ Attention: Rooting your Samsung S10 activates the Knox counter. This permanently blocks Samsung Pay, Secure Folder, and some banking apps, even after restoring the stock firmware.
If you don't plan to make any major system modifications, it's best to avoid this method and instead use the built-in tools or reset the router.
Resetting your router as a last resort
If none of the software methods work, physical access to the signal source remains. Resetting the router to factory settings will reset the password to the value printed on the sticker on the bottom of the device. This is a guaranteed way to regain control of the network.
On the back of the router, find a small hole labeled Reset or DefaultTake a paperclip or toothpick, press the button inside the hole, and hold it for about 10-15 seconds until the lights flash simultaneously. After rebooting, the network will be named as indicated on the sticker, and the password will be the default.
| Action | Consequences | Complexity |
|---|---|---|
| QR code in the menu | Safe, fast | Low |
| Google Account | Requires synchronization | Average |
| Root access | Risk of loss of warranty | High |
| Resetting the router | You need to reconfigure your internet | Average |
Please note that after the reset, you will need to re-enter your ISP login and password (PPPoE, L2TP, etc.) if they are not automatically retrieved. Make sure you have your ISP contract handy.
☑️ Check before resetting your router
Common mistakes and how to fix them
Users often encounter the phone displaying "Authentication Error" or "Unable to Connect." This does not always mean the password is incorrect. In the case of Samsung S10 Security protocol conflicts may occur.
Try selecting the option in the Wi-Fi settings on your phone Additionally for a specific network and change the parameter MAC address privacy to "Use device's MAC address." Some routers block randomized addresses.
The problem may also lie in the frequency range. Samsung S10 It works great on 5 GHz networks, but if your router is old, it may not process requests from newer smartphones correctly. Try temporarily separating the network names (SSIDs) for 2.4 GHz and 5 GHz in your router settings and connecting to the 2.4 GHz band.
Why isn't WPS working?
The WPS (Wi-Fi Protected Setup) feature is considered outdated and vulnerable. On the Samsung S10, it may be hidden or removed from the interface in recent versions of One UI. It's best to use a QR code or manual entry to connect, as WPS is often blocked by antivirus software and routers themselves by default.
If nothing helps, try "Forget the network" on your phone, restart both devices (smartphone and router), and re-enter the data, carefully checking the letter case.
FAQ: Frequently Asked Questions
Is it possible to find out a Wi-Fi password if the phone has never connected to this network?
No, this can't be done using standard Android tools. The phone doesn't store keys for networks it hasn't successfully connected to. The only option is to find a device that's already connected or reset the router.
Is it safe to use Wi-Fi hacking apps from the Play Store?
No. Apps with names like "Wi-Fi Password Hacker" are most often scams. They either display ads or steal your data. The real password can only be obtained with physical access to the router or by accessing data already stored in the system.
What should I do if the QR code is not read by the camera?
Try using a third-party QR code scanner app. Also, make sure your screen brightness is set to maximum and the camera lens is clean. If the code is corrupted software-related, you can take a screenshot and recognize the text using Google Lens.
Will the password be reset after updating the Samsung firmware?
Wi-Fi settings are usually preserved during an over-the-air system update. However, when flashing the firmware via Odin with a full data format (Clean Install), all saved networks and passwords will be deleted.