Download Huawei GR5 (KII-L22) Marshmallow Firmware [B310] [EMUI 4.0]

Android 6.0 Marshmallow firmware update is now available to download for Huawei GR5 KII-L22. Here, on this page I have provided safe and secure direct link to download Huawei GR5 KII-L22 Marshmallow firmware. Below are the firmware details, flashing guide and download link.
Firmware Details

  • Device: Huawei GR5
  • Model: KII-L22
  • Android: v6.0 Marshmallow
  • EMUI: 4.0
  • Firmware: B310
  • Build Number: KII-L22C636B310
  • Custom Number: CUSTC636D002
  • Release Date: 6.06.2016
  • Region: Asia Pacific
  • Country: Thailand
  • Status: Official (stable)
  • Type: Full firmware image
  • File Name: Huawei_GR 5_Firmware_KII-L22_Android 6.0_EMUI
  • Download Link: Official Mirror
  • Size: 1.55 GB

How to Install

This firmware requires your phone to be running one of the following versions onboard already:

  • KII-L22C636B130
  • KII-L22C636B301

Here’s the procedure on installing this firmware:

  1. Download the firmware zip package on your PC.
  2. Extract the archive and transfer the “dload” folder to the external microSD card.
  3. [Recommended] Take a full backup of your existing stuff.
  4. Power your device off.
  5. Now reboot while holding Volume down + Volume up + Power keys for a couple of seconds to initiate the upgrade.

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