On this page, you will find the official link to download Huawei Ascend G615-U10 Stock Firmware ROM (flash file) from GoogleDrive. Downloaded file contains Firmware and instructions.
How to Flash
Step 1: Download and extract the stock firmware on your computer.
Step 2: Copy the dload folder to your phone SD memory.
Step 3: Power Off your Device.
Step 4: Press Volume Up + Down + Power Key at the same time for 5-8 seconds until the update process isnt started automatically.
[*] 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.