Settings > About Phone > Build Number
For advanced users or when the dload method isn't suitable, you can use a PC. This involves using tools like the official HiSuite or, for developers, tools like the Smartphone Flash Tool (SP Flash Tool). It offers more control but is more complex and has a higher risk of error. Firmware Huawei Y9 Prime 2019 Stk-lx3
Example: STK-LX3 10.0.0.275(C792E6R1P1)
If your device is heavily bootlooping and will not read the dload folder automatically, you must manually push the operating system files from a computer using an XML configuration script. Step 1: Prepare the Desktop Utilities Settings > About Phone > Build Number For