I used to transfer files but now I can't. The USB cable transfers from another Huawei, but from my Huawei mobile it doesn't. I turned debug on. Still my computer does not identify it.
Did you try to install the drivers?
If you didn't do this you should install Samsung Adb drivers, it might say Samsung, but it's for all devices. First install it from this link:
Reboot your PC.
After the reboot press + R and type
Find the phone, do right click on it → Properties → Update drivers.
Select Browse my computer for drivers.
Select Let me pick a driver from a list of installed drivers.
Select "Adb drivers" (it might be called something different).
Select Samsung Android Adb interface.
Select Yes to continue (if you get a warning)
You're all set to copy.