USB PORT

[munravyn69]

I have a USB port on the bottom of my horn/light box on the handlebars but have no idea what it is for, I tried to connect my phone and laptop to it but it did nothing. Can anyone help me with this problem?

 

["A"]

Not a phone charger?

 

[HumanPerson]

Diagnostic port?

 

[Anton]

What type of bike?