Download October 2018 Security for Huawei GR5 2017 [BLL-L21]

Here you can now download and install the October 2018 Security for Huawei GR5 2017 BLL-L21 variant.

Huawei started rolling the October 2018 Security for Huawei GR5 2017 (BLL-L21). Along with October 2018 Security Patch, this update also improves the performance and stability of the device. The firmware is still based on Android 7.0 Nougat.

Download October 2018 Security for Huawei GR5 2017 [BLL-L21]

How to Update October 2018 Security for Huawei GR5 2017

[su_note note_color=”#fffde3″]Note: If you have rooted or installed any mods or recovery, then you may not be able to install the update. So in order to upgrade your phone to the latest version. First, you need to either unroot or you can install the update manually.[/su_note]

The update sent in a phase-wise manner via OTA (Over the air) and will reach the users in Mexico region. If you still not received the update, then wait for a couple of days or even weeks to receive this new update on your phone. You can even check for the new OTA availability manually by going into Settings –> System –> System Update –> Check for Updates.

[su_note note_color=”#fffde3″]Before proceeding to download, Huawei GR5 2017 must have enough battery backup with at least 50% battery. Also to install this update, make sure you have enough storage on your device to complete the installation process. We suggest you to choose a Wi-Fi or a 4G connection to download it. Before following this, take a complete data backup to avoid any problem in case things go wrong. After following the procedure mentioned above, you can now start downloading the update on Huawei GR5 2017 (BLL-L21). As this update is an incremental update, it wouldn’t take a lot of time to download and install.[/su_note]

GetDroidTips is not responsible for any kind of damage occurred to your device during installation. Do it at your own risk.

Official Firmware Details :

  • Device: Huawei GR5 2017
  • Model No: BLL-L21
  • Android OS: 7.0 Nougat
  • EMUI Version: 7.0
  • Status: Official
  • Type: Full firmware image
  • Size : 1.7 GB

Full B332 Changelog:

  • Integrates Google security patches released in October 2018 for improved system security.


BLL-L21C10B384 – Russia


Download Data File

Steps to Install Firmware on Huawei GR5 2017

Before following the below guide on how to install firmware on Huawei GR5 2017, you need to follow certain requirements. Download the required files before flashing the firmware on your phone.



GetDroidTips will not be responsible for bricking or damage to your device


Still not able to update? then you can flash the latest update using this guide: Download Firmware for Huawei Devices with Huawei Firmware Finder

We have also shared useful extraction trick to Extract and Install the file from Huawei Firmware package.

I hope you have successfully flashed the October 2018 Security for Huawei GR5 2017 using this guide. If any queries or feedback, please leave a comment.

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