The A7000 supports the OTG function. The OTG function enables data exchange by connecting the phone to the USB flash drive, mouse, keyboard, and other operations through the OTG cable.Take the specific operation of connecting USB flash disk as an example: 1. OTG cable is plug and play.First, connect the USB stick to your phone through the OTG adapter cable. 2. After connecting the USB flash drive, the phone interface will automatically jump to the UsbDriveA (or USB storage A) folder under My Files, and all the files in the USB flash drive will be displayed. Click to open the file you want to view. 3. To disconnect the USB flash drive, slide down the top curtain of the phone screen with your finger, click USB mass storage is connected, and when the phone screen shows that USB mass storage has been safely removed, unplug the USB flash drive. If the phone cannot connect to the USB flash drive, please try replacing another USB device or an OTG adapter cable.