Recently another leaked based C432B400 Marshmallow firmware for Huawei G8 has been surfaced. The update has some enhancements in the built-in features and apps. This update also comes with Emotion UI 4.0 that has all the latest features of Android 6.0 Marshmallow. The update might be available on OTA very soon. However, if you interested to get it fast and taste all the latest improvements quickly then follow this guide. Below is the download link and step by step tutorial to download and install Huawei G8 B400 Marshmallow.

Note: The B400 Marshmallow is a leaked firmware and you could wait for official OTA update. Also, the guide intended only to Install Huawei G8 B400 Marshmallow firmware. Don’t install on any other variant. Also, proceed and flash only at your own risk. We are not responsible for any mishap during or after the process.

Firmware Info:

Device: Huawei G8 (GX8).
Model: RIO-L01
Android: 6.0 Marshmallow- EMUI 4.0
Firmware build: B400/ RIO-L01C432B400
Region: Europe.
Status: Unofficial – Full firmware.

Preps| Downloads:

A proper backup for the entire existing data on G8 is highly recommended before flashing this update.
Also, check the charge status of the battery, it should be more than 70%.
Furthermore, Huawei USB driver or Hi-suite should be installed at the PC. | Download Link
Huawei G8 carrying C432Bxx CUST number only are compatible with this update.

Download B400 Marshmallow for Huawei G8/ GX8. |Download Link |Size: 1.32GB

File: [RIO-L01C432B400FULL.zip]

Steps to Install Huawei G8 B400 Marshmallow

First of all, download B400 update zip file and then extract at the desktop.
Next, create a new folder at home directory of micro-SD card, via “dload” name.
Now connect G8 to PC and copy the update file into dload
Then unplug and power off the device.
Finally, press and hold the buttons Vol up + Vol down + Power all at once for a few seconds.
Hence, the update process initiates and complete with the normal reboot.
Done!

So, this is how to Install Huawei G8 B400 Marshmallow Firmware [RIO-L01]. If you need more assistance or feel any difficulty, contact us via comments.

source: huaweiblog.de