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Download and Install Marshmallow Firmware in Huawei Mate S B390 [Europe]

The Huawei MATE S sports a 13-megapixel rear camera with PDAF (phase detection autofocus), an f/2.0 aperture  and dual-tone LED flash. The 8-megapixel front camera sports an 84-degree wide angle lens.It comes with octocore Processor.It comes with 2700 mah battery capacity which can last for a day with mixed usage.You can not expand its memory.Today in this article we will guide you to install the Android Marshmallow Firmware in Huawei MATE S.

Mate S

Firmware Information –

  • Device – Huawei Mate S
  • Model – CRR-L09
  • Android Version – 6.0
  • EMUI Version – 4.0.1
  • Firmware – B390
  • Build Number – CRR-L09C432B390
  • Region – Europe
  • Status – Official
  • Type – Full firmware image
  • Size – 1.6 GB


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


  • This method is only for the Huawei Mate S CRR-L09.Donot try it on any other device.
  • It is advisable to take a backup of your device before proceeding further.
  • Ensure that your phone has at least 70-80% charged to prevent the accidental shutdown in-between the process.

Download Huawei Mate S B390 Marshmallow Firmware

Download Huawei Mate S B390 Firmware for CRR-L09

Steps to Update Huawei MATE S to Android Marshmallow

Step 1: Download the Stock ROM from the above downloads section and extract it.

Step 2: Create a dload folder in the root of your SD card and place the update.app file in that folder.

Step 3: Go to Settings > Update and press the menu button.

Step 4: Choose Local Update.

Step 5: Tap on update.app to start the installation process.

Step 6: Wait for the installation process to complete and reboot your device.

If still any queries left in your mind,feel free to ask via 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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