Important Note: Huawei no longer provides direct public downloads for firmware since the US trade ban (2019). You cannot simply go to a "Downloads" page on Huawei’s main website anymore. You must use alternative methods, recovery tools, or partner sites.
. While the device originally launched with EMUI 9.1 (Android 9), it was subsequently upgraded to EMUI 10 and eventually received the EMUI 12 update in various regions starting in 2022. Firmware Details for STK-LX3 Latest Stable Version: EMUI 12.0.0.xxx (varies by region/carrier). Android Base:
To see if your STK-LX3 has the most recent available firmware: Huawei Y9 Prime 2019 ready for EMUI 12 beta testing firmware huawei y9 prime 2019 stklx3 updated
To update your Huawei Y9 Prime 2019 (STK-LX3), you can use several methods ranging from simple over-the-air (OTA) updates to manual firmware flashing for troubleshooting. Latest Official Version
Latest Firmware Version: The latest firmware version for the Huawei Y9 Prime 2019 (STK-LX3) is 10.0.0.185(C635E4R1P3), which is based on Android 10. However, please note that firmware versions may vary depending on your region and carrier. Important Note: Huawei no longer provides direct public
Document Version: 1.0
Last Reviewed: April 2026
: Swiping down from the top left opens your notifications, while swiping from the top right reveals a unified Control Panel for shortcuts and media. Device+ Integration Android Base: To see if your STK-LX3 has
Updating to the latest version, such as the EMUI 10 or EMUI 12 builds, provides significant enhancements: Huawei Y9 Prime (2019) - Full phone specifications
No, the Y9 Prime 2019 was released before the US ban. All official firmware includes full Google Mobile Services (GMS).