On this page, you will find the official link to download Vivo Y55S 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 Vivo Y55S Stock Firmware (flash file)
How to Flash
Step 1: Download and extract the Vivo Y55S stock firmware on your computer.
Step 2: After extracting, you will be able to get the Firmware File, Flash Tool, Driver and How-to Flash Guide.
Step 3: Install the provided USB Driver on your Computer if in case USB Driver is already installed, SKIP this step).
Step 4: Follow the How-to Flash Guide to Flash the Firmware on your Vivo Y55S Device.