Why won't my laptop recognize my iphone?

I've used the usb to charge it from the wall and it works perfectly fine but now i'm trying to update my songs so i tried plugging it into my laptop and connect to itunes but it doesn't recognize my phone or show up that its charging (i'm using the same usb)

How to fix a usb port, and both are very good and work…
http://www.laptoprepair101.com/laptop/category/hardware-test-utilities/

I've used the usb to charge it from the wall and it works perfectly fine but now i'm trying to update my songs so i tried plugging it into my laptop and connect to itunes but it doesn't recognize my phone or show up that its charging (i'm using the same usb)

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  • Why won't my iTunes recognize my iPhone 5c anymore? My iTunes used to always recognize my iPhone, even my laptop right away had something pop up for it when I plugged it in. My brother recently got a new iPhone so he signed into his iTunes and ever since nothing happens when I plug my phone in besides charge it, same for my brother. Is it because he signed in or also because I just updated iTunes? I've tried restarting both my iPhone and laptop.
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