Infinix Smart 5: How to enable the Developer Options? for USB Debugging etc. ; also for Smart 6

With this video, I want to show you, how you can activate the developer options at the Infinix Smart 5 and Smart 6. I will show you also, how you can disable it after.
At the developer's mode, you can enable the USB-Debugging to transfer data for example.
Thanks for watching phonesandmore :-)