If you have large files to transfer, but the methods above aren't working for you, you'll need to resort to another option. Your best bet is to use your phone's charger and transfer larger files via USB. The process is fairly simple. - All you need to do is plug your phone into its charger, and the USB end into the USB port on your PC. - Then, a pop-up will appear asking if you'd like to allow your computer to have access to your phone. Approve any permissions required and you're all set! If you run into problems, it's likely because you'll need to turn on USB debugging on your phone. That process is simple too! - Just open the Settings on your Android device and search for Build Number (typically located under About Phone > Software Information). - Tap Build Number seven times to unlock your devices' developer options. - Then, head back to Settings, tap on Developer Options, and toggle the switch next to USB Debugging on.