Open up Settings
Choose About Phone
Look for an option that says 'About Phone'. This may also be housed within 'Systems.'
Check your Model
Google the Model Number
Enter the 6-digit code (with or without the "-" ) into Google or similar search engine.
This will show you exactly what Huawei Phone model you have so you can choose the right Huawei repair for your device.
The above example shows that the Model number VOG-L29 is a Huawei iP30-Pro