I can't find it anymore. Where's OTG? Where are the more settings? My mobile phone is Huawei pro20.

OTG is a USB transmission technology. Through OTG jumper, the mobile phone can directly access files in devices such as USB flash drive or digital camera, and can also be connected to external devices such as keyboard and mouse. The usage method is as follows:

1. Mobile phone charging: Mobile phone A is plugged into OTG line, and the other end is connected to mobile phone B through data line, and A can charge B. ..

2. Connect the mouse and keyboard: When connecting, connect the cable through OTG, with one end plugged into the phone interface and the other end connected to the mouse and keyboard.

3. File transfer: Connect the mobile phone to the USB storage device through the OTG line, then enter the "Local" tab of "File Management" and select "USB" to transfer files between the mobile phone and USB storage device.