Database of Mobile Firmware (ROM)

Zong Ultra Bolt B310S-927

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On this page, you can find the link to download the Zong Ultra Bolt B310S-927 Stock Firmware ROM (Flash File). The Stock Firmware (Flash File) comes in a zip package which contains the original How-to Install Guide, USB Driver, Flash Tool, and Flash File (ROM).

Zong Ultra Bolt B310S-927 Stock Firmware ROM (Flash File)

The following Stock Firmware is the mobile operating system (OS) version that comes pre-installed on a device. It is the version of the OS provided by the device manufacturer and is typically the most stable version. The device manufacturer usually updates the stock firmware to fix bugs and add new features.

File Name:
File Size: 34.12 MB
Flash Tool: Miracle Flash Tool
How to Flash (install): Follow Guidelines

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How to Install the Zong Ultra Bolt B310S-927 Firmware

  1. Download and extract the Zong Ultra Bolt B310S-927 stock firmware on the computer.
  2. Once you have extracted the ZIP package on your computer, you will be able to get the How-To Flash Guide and Flash File (ROM).
  3. Now, install the provided USB driver on the computer.
  4. Connect your device to the PC using the LAN cable.
  5. Open any web browser and type
  6. In Device Settings > Local Update > Open B310-927_U_UPDATE_21.321.03.00.306_AT_01.bin file (found inside the extracted package).
  7. Click Update and wait for Updating process to be completed.
  8. Once the update process is completed, your Router will be Unlocked.

Readme Once:

[*] Backup: Take a backup of your Data before using the Flash Tool to Flash or Install the Firmware on the Mobile, as installing the firmware will wipe out the device’s data, including Settings, Applications and Photos.

[*] Credits: The device manufacturer released the above Stock Firmware, which is in its original state. Using the Norton AntiVirus Plus application, we have scanned the above Stock Firmware against malware/viruses.

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