Contains the main Android OS, kernel, and system apps.
The SamFw Tool is a frequently updated utility that simplifies several complex tasks: samfirmware
Used to update firmware without wiping user data (retaining your apps and photos). How to Find and Download Official Samsung Firmware Contains the main Android OS, kernel, and system apps
To get the correct firmware, you must match the file to your exact device model and region. 1. Find Your Model Number and CSC Go to on your device. Locate the Model Number (e.g., SM-G991B ). Contains the main Android OS