Huawei is gradually pushing the latest updates for the newer version of Android 6.0. And recently the Mate S also received the OTA updates L09C432B321 build. This is an official and more stable release for Mate S running CRR L09C432B303 build already. The updates come with bugs fixing and more developed features. Here today I have the official link to download B321 build and the instruction to Update Huawei Mate S CRR to Android 6.0 Official EMUI 4.0 B321 Firmware OTA package manually. Use updater app and flash this build easily.

DISCLAIMER: Update Huawei Mate S CRR to Android 6.0 Official EMUI 4.0 B321 with this guide. Do confirm your device model and current build. Also, take the precautionary measures before going to start.

Preps| Downloads:

Perform a prior backup of your apps, gallery, SMS and other data on Mate S.
Mate S should have at least 80% charged battery.
Hi-Suite or USB driver in your PC should be installed. [Download Page]

Android 6.0 B321 build OTA updates for Mate S. |Link| – |Size: 267.1 MB|

File Name: [Update.zip]

Android 6.0 BETA Full firmware for Mate S CRR. |Link| – |Size: 1.12 GB|

File Name: [update.zip]

Steps to Update Huawei Mate S CRR to Android 6.0 Official EMUI 4.0 B321

Do confirm Mate S model and current build.
Then from the link above download the Update.zip OTA update package.
Rename the download update file with (Zip).
Now in the device micro-SD create ‘dload’ folder if already not existed.
Next, do copy the zip file, to that new created or already there ‘dload’ folder in micro-SD.
Now open device > select update menu. > Here tap ‘Menu’. > And choose “Local update”.
Next, find and add the already copied “zip” file. And confirm to flash.
Wait for some time, Mate S will be rebooted and finishes the process.