Here is the official B340 Android 6.0 Marshmallow update for the Asian Huawei Mate S (CRR-UL00) variant available to download.
The final Android 6.0 Marshmallow firmware build is now available for Huawei Mate S (CRR-UL00, CRR-L13 & CRR-UL20) in Middle Eastern countries. You can download the full firmware package as Update.app for the aforementioned variants below.
Huawei has officially outed the stock C470B115 Android 5.1 Lollipop firmware of its Mate S (CRR-L13) flagship for Asian Pacific countries. You can download this firmware as full Update.app package below.