Stock ROM For Vivo U20 (PD1941F)

The Stock ROM (Read-Only Memory) for the Vivo U20 (PD1941F) is the official operating system that comes pre-installed on the device. It provides the essential software for the proper functioning of the device, including the Android operating system, device drivers, and necessary system files. Here’s a detailed overview:

1. Android Version:

  • The Stock ROM for Vivo U20 will include a specific version of the Android operating system. This could be Android 9 (Pie) or Android 10, depending on when the device was released and subsequent updates.

2. Custom Vivo UI:

  • Vivo devices typically run on Funtouch OS, which is Vivo’s custom user interface layered on top of Android. The Stock ROM will include the specific version of Funtouch OS designed for the Vivo U20.

3. Kernel and Device Drivers:

  • The kernel is a crucial component of the operating system that manages communication between the hardware and software. The Stock ROM contains the device-specific kernel and drivers necessary for optimal performance and hardware compatibility.

4. Pre-installed Apps:

  • The Stock ROM includes essential pre-installed applications that come with the device. These may include system apps, Google apps, and apps specific to Vivo.

5. Security Patches and Updates:

  • The Stock ROM is likely to include the latest security patches and updates released by Vivo. This ensures that the device has the latest bug fixes, security improvements, and overall system enhancements.

6. Recovery and Fastboot Modes:

  • The Stock ROM provides access to recovery and fastboot modes, allowing users to perform tasks like system updates, factory resets, and flashing custom ROMs if needed.

7. Official Support:

  • Using the Stock ROM ensures that the device is in compliance with Vivo’s official software support. This is important for receiving over-the-air updates, warranty coverage, and official technical support.

It’s crucial to note that flashing a device with an unofficial or custom ROM may void the warranty and could lead to unexpected issues. If you’re considering any modifications, it’s recommended to proceed with caution and follow official guidelines provided by the device manufacturer.



  • Download and extract: VIVO_BBK5.1.11_Version (4shared – Mediafire).
  • Install driver and watch the tutorial video
  • Disable Antivirus and run ATF Tool and Sign-in:
    • User: shuajibang520

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