Capturing Traffic from Samsung Devices
Environment
| Product | Fiddler Everywhere 6.0.0 and above |
| Smartphone | Samsung with One UI 6 |
Description
This article explains how to install and trust the Fiddler CA certificate on Samsung devices running One UI 6, enabling HTTPS traffic capture with Fiddler Everywhere.
Solution
Follow these steps to capture HTTPS traffic from your Samsung device with Fiddler Everywhere:
Install Fiddler Everywhere
Download and install the Fiddler Everywhere application on your host computer (the machine that will capture the traffic).Enable Remote Connections in Fiddler Everywhere
Open Fiddler Everywhere on your host computer. In the application, ensure that the Allow remote devices to connect option is enabled by checking the checkbox next to it.-
Connect Both Devices to the Same Network
Ensure both your Samsung device and the host computer are connected to the same Wi-Fi network. The network should not have restrictions that block device-to-device communication.By default, Fiddler Everywhere uses TCP port 8866 for remote connections. Make sure this port is open.
Start the "Connect Remote Devices" Wizard
In Fiddler Everywhere, open the "Connect Remote Devices" automated configuration wizard to guide you through the setup.-
Install the Fiddler CA Certificate on Your Samsung Device
When you reach the "Install CA Certificate" step in the wizard, do the following on your Samsung device:- Open Settings > Security and Privacy > More security settings > Install from device storage > CA Certificate.
- Tap Install Anyway when prompted.
- Enter your device PIN or password.
- Navigate to the Downloads folder and select the Fiddler CA certificate file (usually named
FiddlerRoot.cer). - Check the Fiddler CA certificate using the available checkbox.
- Tap Done to complete the installation.
Trust the Certificate
After installation, ensure the certificate is trusted for network traffic. Some apps may not trust user-installed certificates due to Android security policies. For best results, test with browsers or apps that allow user certificates.Start Capturing Traffic
Configure your Samsung device's Wi-Fi proxy settings to point to the host computer's IP address and port 8866. Begin capturing traffic in Fiddler Everywhere.
Some applications, especially banking or security apps, may use certificate pinning and will not trust user-installed CA certificates. In such cases, HTTPS traffic from those apps cannot be decrypted by Fiddler.
Troubleshooting
- If you do not see traffic from your Samsung device, double-check the proxy settings and ensure both devices are on the same network.
- Make sure the Fiddler CA certificate is correctly installed and trusted.
- Restart your Samsung device if the certificate does not appear in the trusted credentials list.