✔ 最佳答案
the usb is suppose for you to use for charging, if you want to in put some information like pic and songs into it, you have to buy a micro sd card, and then put the data through the computer to the sd card, and then put the sd card in the phone
the blue tooth, you go to settings and then click the connect setting, then choose blue tooth, and go to blue tooth settings and click open, and click "let the others to see me" function, and then you can send pic and songs through b-t, by clicking send, and is ivia b-t
hope that it could help you