Here is how to upgrade Huawei GR5 KII-L05 to B330 Marshmallow build. The update has been already available via OTA in Canada. The user of GR5 KII-L05 getting the alerts however, you can also update it via manual download update procedure. I have mentioned the official download link with a concise flashing tutorial. Follow step by step to flash the updates successfully.

DISCLAIMER: This guide and firmware can only be used to Upgrade Huawei GR5 KII-L05 Canada to B330 Marshmallow. Not compatible with any other variant. Also, follow and proceed at your own risk.

Upgrade Huawei GR5 KII-L05 to B330 Marshmallow based EMUI 4.0 Firmware [Canada].

Firmware Info:

• Device Model: Huawei GR5 – [KII-L05].
• Android: EMUI: 4.0 based on Android 6.0.1 Marshmallow.
• Build NO: B330- KII-L05C654B330.
• Region: Canada.
• Carrier: Rogers.
• Status:Official –Full firmware.

Preps| Downloads:

• Perform a full data backup of GR5 to avoid any data loss.
• At least 80% charge at the GR5 battery is essential for safe update process.
• Also, the USB driver of Huawei or Hi-suite installation at the PC required. [Download Link]

Download B330 Marshmallow for GR5: |Official Link| – |Size- 1.63 GB|.

File: [Huawei_ GR5_ Firmware_KII-L05_Android 6.0.1_EMUI 4.0_C654B330_ Canada_ Rogers.zip].

Step to Upgrade Huawei GR5 KII-L05 to B330 Marshmallow

1. Download B330 zip package from the link and extract at the PC.
2. From extracted folder copy the dload folder at the home directory of micro SD card of the device.
3. Next, disconnect GR5 from the PC and switch off
4. Press and hold VOLUP+ DOWN+ POWER key of the device at the same time for a few seconds.
5. Release all after initiating the update process.
6. Wait until completion and reboot.

That’s how to Upgrade Huawei GR5 KII-L05 to B330 Marshmallow.

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