By , the official stable rollout began. For the STK-LX3 variant, the firmware (often seen as version 12.0.0.225 ) brought significant changes:
Improved system fluidity and "gravitational" transitions. firmware huawei y9 prime 2019 stk-lx3 emui 12
Connect your phone to a PC and use the HiSuite software to check for a "System Update". 📋 Key Firmware Details By , the official stable rollout began