Using Usb On-The-Go (Otg) - Zte Blade V50S Manual

Using USB On-The-Go (OTG)

Your phone supports USB On-The-Go. You can connect the
phone and a USB peripheral device (such as a USB flash drive, a
USB mouse, or a USB keyboard) with an OTG adapter.
For example, when you connect the phone with a USB flash drive,
you can browse the files on the flash drive; connect the phone
with a USB mouse and you can navigate the phone with the
mouse.
NOTE:
To safely remove a connected USB storage device (such as a
USB flash drive), open Settings, touch Storage and find the
name of the device. Then touch next to it.
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