A preview build of B317 Android 6.0 Marshmallow is available for Huawei P8 (GRA-UL10) in Germany.

Follow our guide below to download the update and install it yourself.

Firmware Details

  • Device: Huawei P8
  • Model: GRA-UL10
  • Android: v6.0 Marshmallow
  • EMUI: 4.0
  • Firmware: B317
  • Build Number: GRA-UL10C432B317
  • Custom Number: CUSTC432D001
  • Region: Europe
  • Country: Germany
  • Release Date: 23-02-2016
  • Status: Official (Preview)
  • Type: Full firmware image
  • File Name: Huawei_P8_Firmware_GRA-UL10_Android6.0_EMUI4.0_C432B317_Europe_Preview Version_Not Final Release.zip

his firmware will only work on the European GRA-UL10 variant of Huawei P8 that carries C432D001 cust number already runs one of the following firmware:

1. GRA-UL10C900B161
2. GRA-UL10C900B181
3. GRA-UL10C432B313.

This site or the developers are not responsible,  if you damage or brick your device.Do it on your own risk and follow the instruction properly.

How to Update Huawei P8 (UL10) to  Marshmallow 6.0 B317 Preview [Europe]

1- Download  Huawei P8 (UL10) Marshmallow 6.0 B317and extract it.You’ll get a dload folder (containing Update.app) along with a couple of PDFs.

2- Transfer that dload folder to your phone’s microSD card.After that, turn your device off and reboot while holding Power + Vol Up + Vol Down.

3- Release the Power button upon vibration. As soon as the upgrade starts let go of the volume keys too.

4- Your device will automatically reboot after a few minutes into installation.

That’s it! Your Huawei P8 (GRA-UL10) should now have Marshmallow on your phone! Go to Settings > About phone to verify.


  1. Hi Mod…
    I truly apologize for deviating from the thread.
    I just wanted to find out if there's any positive progress on the Samsung Galaxy J500H Android 6.0 Custom Rom I once requested.
    Thanks in anticipation for your response.


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