I think my power plug is the problem. How can I make sure? PC's USB is working fine.
Download USB Driver and Go to Device Manager->right click your device ->select Update driver-> Select Browse from my Computer on diaglog->Browse the path where your USB Driver downloaded -> Click ok or Select Browse from online it will take time but suitable driver will be install.
If you think there is a problem with your cable, find a friend with a working cable and phone.
- Try your friend's working cable with your phone. This should work.
- Try the suspected bad cable with your friend's phone. This should not work.