This is the most direct way to check for the EMUI 12 update: Open on your phone. Go to System & updates > Software update . Tap Check for updates .
There is no official global EMUI 12. If you want it, you must manually flash a compatible firmware. huawei y9 prime 2019 emui 12 download
Download and install the official Huawei HiSuite on your computer. This is the most direct way to check
Compatibility and prerequisites