Home » Download and Install Huawei P8 B392 Marshmallow Firmware

Download and Install Huawei P8 B392 Marshmallow Firmware


The Huawei P8 sports a 13-megapixel rear camera with PDAF (phase detection autofocus), an f/2.0 aperture and dual-tone LED flash with OIS. The 8-megapixel front camera sports an 84-degree wide angle lens.It comes with2600 mAh battery capacity which can last for a day with light usage.

This is the official update given by the company. You can manually check whether the update is available in your region or not. Go to Settings –> About Phone –> Software Update. Many users reported that they still not received the OTA update, so we are providing the Marshmallow OTA file for Huawei P8 B392.

Disclaimer: Gammerson.com is not responsible for any damage happened to your device(s) while following this guide, Proceed at your own risk.


  • This guide is for the Huawei P8
  • A complete nandroid backup of your device is recommended, in case something goes wrong.
  • Make sure your device is charged at least upto 60%, to prevent unexpected shutdowns in the process.
  • Follow all the steps correctly or you may brick your device

Firmware Information –

Device – Huawei P8
Model – GRA-L09
Android Version – 6.0
EMUI Version – 4.0.1
Firmware – B392
Build Number – GRA-L09C432B392
Status – Official
Type – Full/OTA firmware image


Download Huawei P8 B392 Full ROM for GRA -L09- Download

Download Huawei P8 B392 OTA for GRA-L09 – Download


How to Install Huawei P8 B392 Marshmallow Firmware

  1. First of all, download Stock ROM for Huawei P8 from download Section.
  2. Once the files downloaded then extract it and connect your P8 to PC or Laptop.
  3. Now create a folder dload in the root of your SD card (If the dload folder not exists) and place the update.app file in that folder.
  4. Once the file transferred then switch off your device.
  5. Now press “Volume Up + Volume Down and Power Button” together. The update process will start automatically.
  6. Now, wait for few minutes to complete the process.
  7. Reboot your device


If still any queries left in your mind,feel free to ask us in the comment section

About the author

Himalaya Saxena

A web developer, Tech Enthusiast, debugger, blogger, and programmer.
I have the thirst to learn and create :)

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