On this page, you will find the official link to download Samsung SM-G870W Stock Firmware ROM (flash file) on your Computer. Firmware comes in a zip package, which contains Flash File, Flash Tool, USB Driver and How-to Flash Manual.
Download Samsung SM-G870W Stock Firmware (flash file)
How to Flash
Step 1: Download and extract the Samsung SM-G870W stock firmware package on your computer.
Step 3: Install the provided USB Driver on your Computer, and if in case USB Driver is already installed, SKIP this step).
Step 4: Follow the How-to Flash Manual to Flash the Firmware on your Samsung SM-G870W Device.
[*] Take a Backup: If you are going to flash the above Firmware on your Samsung SM-G870W device, then take a backup of everything as because your personal data will be deleted after flashing the stock firmware.
[*] The firmware shared on this page is officially released by the company and helps you to recovery your device if you ever got bootloop, software error, update error, hanging and dead issue.