In fact, the data line transmission speed should be faster. . . After all, it is wired. . . Bluetooth transmission speed is actually not fast. . . The computer can't display the drive letter of your mobile phone memory card. Maybe you chose the wrong connection port. You should choose the data connection port or the drive letter of the removable disk to hide on your computer. . . As long as the phone shows that the connection is normal. . You can find your mobile phone storage disk in the computer disk management. . Where you can open the memory disk of your mobile phone. . Just try it. , hehe