Essential commands for device diagnostics, rebooting to bootloader, and removing bloatware.

Right-click SamFirm_AIO.exe and select Run as Administrator . 3. Downloading Firmware Navigate to the Firmware tab. Downloading Firmware Navigate to the Firmware tab

Enter your device (e.g., SM-G991B) and Region/CSC (e.g., DBT for Germany, XAR for USA). Click Check Update . Once the firmware info appears, click and select

Once the firmware info appears, click and select your saving location. 4. Using AIO (All-In-One) Tools Connect your phone to the PC via a high-quality USB cable. Go to the Tools or Service tab. 2. Download and Launch

Ensure USB Debugging is on (if the phone is booted) to use the ADB commands for resets or info reading. Important Safety Note

Ensure the latest Samsung USB Drivers are installed on your PC so the tool can "see" your phone. 2. Download and Launch