Here is the full stable EMUI 4.0 firmware B310 build for Huawei GR5. The update is live via OTA for stylish GR5 in the Asian pacific region. This is a stable build and full firmware. In this guide, we will guide you to update Huawei GR5 [KII-L22] to Android 6.0 B320 manually. The download link of B310 EMUI 4.0 is shared below. Download the package and then follow the step by step guide to flash it.

DISCLAIMER: Use this guide to update Huawei GR5 [KII-L22] running on C636B301/ C636B130 build to Android 6.0 B310 build. Don’t use this B310 build for other devices. Also, proceed and flash at your own risk.

Update Huawei GR5 [KII-L22] to Android 6.0 EMUI 4.0 B310 Build.

Firmware Info:

• Device [Model]: Huawei GR5 [KII-L22].
• Firmware: EMUI: 4.0 – Android 6.0 Marshmallow.
• Build: B310 [KII-L22C636B310].
• CUST Number: CUSTC636D002.
• Country: Thailand.
• Region: Asia Pacific.
• Status: Official – stable [Full firmware image].

Preps| Downloads:

• Perform a full data backup on Huawei GR5 before going to start the flashing process.
• Charge the battery of GR5 at least 70% before flashing.
• Install the USB Driver or Hi-Suite at your PC. [Download Link].
• GR5 should be running on C636B301/ C636B130 build of Lollipop.

Download B310 EMUI 4.0 Marshmallow build for GR5 here. |Official Link|.

File: [Huawei_ GR 5_Firmware_ KII-L22_ Android 6.0_ EMUI 4.0_C636B310CUSTC636D002_ Thailand.zip] – [Size: 1.55 GB].

Steps to update Huawei GR5 [KII-L22] to Marshmallow B310 build.

1. Download B310 EMUI 4.0 zip file and then extract it at the PC.
2. From extracted folder find “dload” and copy it to the micro SD root folder.
3. Disconnect GR5 and turn it off
4. Now boot GR5 while holding pressed Vol- down + Vol- up + Power keys for few second all at once.
5. Now the update process runs automatically. Wait for completion.

That’s how to update Huawei GR5 [KII-L22] to Marshmallow B310.

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