Bluboo B1s Download Stock Firmware ROM Flash file: On this page, you will find the official link to download Bluboo B1s Stock Firmware ROM (flash file) from GoogleDrive. Firmware comes in a zip package, which contains Flash File, Flash Tool, Driver and How-to Manual.
How to Flash
Step 1: Download and concentrate the stock firmware on your PC.
Step 2: After removing you will discover the SP Flash Tool, Driver and guideline manual.
Step 3: Install the USB Drivers (skip if drivers are now introduced).
Step 4: Open the SP Flash Tool and load the Scatter File from the firmware envelope.
Step 5: Connect your Smartphone to the PC utilizing the USB Driver.
Step 6: Click on Upgrade/Download Button in the SP Flash Tool to Begin the Flashing.
Step 7: Green Ring will show up toward the finish of effective Flash.
[*] Take a Backup of your personal data before flashing or installing the firmware on your smartphone. As this helps you to recover the personal data whenever any thing wrong happens.