How to use the OTG function of OPPO mobile phone?

OTG is the abbreviation of On-The-Go, which is a USB transmission technology. Published by USB implementer forum on February 8, 2000118, it is mainly used for data exchange between different devices or mobile devices.

Through OTG cable, mobile phones (which need OTG function) can directly access files in devices such as USB flash drives or digital cameras, and can also be connected to external devices such as keyboards and mice. If you are using OPPO/ One Plus mobile phone, you can refer to the following methods to turn on OTG function:

1, OTG switch settings:

ColorOS 13 and above: "Settings >; Other settings > OTG connection "to turn the OTG function on or off.

Coloros12-12.1Version: "Settings >; System settings > (handy tools) > OTG connection "to turn on or off the OTG function.

Coloros version 3.0- 1 1.3: Go to Settings > Other Settings > OTG Connection to turn the OTG function on or off.

2. After 2.OTG connects the USB flash drive, check the path of the USB flash drive with your mobile phone:

After OTG connects the USB flash drive, you can view the contents of the USB flash drive in the file management APP > > storage of the mobile phone, and the disk name is displayed as Udiska.

3, OTG function introduction and use

(1) original OTG cable function

A. Free operation, no need for computers, end-to-end direct copying and resource sharing.

B USB flash drive/card reader/wireless keyboard/mouse/tablet can be connected.

C. The mobile phone directly used to support OTG function is connected with external devices such as USB flash drive, card reader and digital camera for data transmission and input operation.

D. For OTG, it is used to connect different devices or mobile devices to exchange data without PC.

(2) realization principle

OTG can be used as both a host and a peripheral. When the OTG line is connected to the equipment, the ID pin in the mini-A plug is grounded and the ID pin in the mini-B plug is suspended. When the mobile phone supporting OTG function detects that the ID pin of the inserted OTG device is grounded, it means that device A (host) is the default, and the device that detects the floating ID pin is considered as device B (peripheral).

(3) Connection method

Connect the MicroUSB port of OTG to the mobile phone, and then connect the USB port to the corresponding external device.

(4) Connect the storage device through OTG.

After connecting storage devices (such as mobile phones, USB flash drives, etc.). ) Through OTG, the mobile phone will prompt that the USB storage is connected, and at the same time, the USB icon will be displayed in the status bar of the screen. Enter the file management to view the connected disk UDiskA.

Files can be moved, copied and deleted: in file management, files (or folders) on UDiskA disk (or mobile phone storage) can be moved (or copied) to mobile phone storage (or UDiskA disk). At the same time, you can check the total capacity and available space of USB memory in Settings > Storage.

A. At present, the capacity of U disk supported by OTG function of mobile phone is 2TB, and the format of large-capacity U disk is NTFS. With the development of electronic products, more formats will be supported.

B. The USB flash drive format supported by the OTG function of mobile phone has formats such as FAT and NTFS, and it also supports connecting hard disk devices.

(5) Connect the mouse through OTG.

After the mouse with USB interface is connected to the mobile phone through OTG cable, the small arrow icon will be displayed on the screen of the mobile phone, and the mouse icon will be displayed on the top status bar. Drag the mouse pointer arrow to the top of the screen, and press and hold the left mouse button or the right mouse button (after connecting OTG, the left and right mouse buttons have the same function) to drop down the status bar.

Drag the mouse wheel to switch between different pages. Click the program icon to open the program. However, you need to exit the program through the back key of the mobile phone (or the return option of the program itself).

(6) Connect USB keyboard through OTG.

USBOTG can connect mouse and keyboard at the same time. When the USB keyboard is connected, the keyboard icon will be displayed in the status bar at the top of the screen.

In the editable input interface (such as SMS interface), you can enter characters (Chinese and English) and symbols through the USB keyboard, and press ESC to exit the current program.

note:

Press F2 on the keyboard to quickly start the camera; The menu keys of the keyboard have the same functions as those of the mobile phone. Press the menu key of the keyboard to bring up the mobile phone desktop, and long press the menu key to start the small European assistant.

A. When the peripheral device is plugged in, the recognition speed may slow down. You can wait for a while. If there is no recognition, you can reconnect.

B can support the connection of mobile phone, camera, USB flash drive, MP3, MP4, MP5, SD card, mouse, keyboard, wireless mouse, wireless keyboard, game machine and other devices.

(7) Through the external network card of OTG

When using the OTG function of the mobile phone to connect the network card, the following conditions need to be met:

A. the network card needs to bring its own Linux driver.

B the interface of the network card is the same as that of the mobile phone. For example, if the mobile phone has a Type-C interface, then the mobile phone connected to the corresponding network card should also have a Type-C interface; Or expand the connection between the mobile phone and the network card through the OTG docking station to ensure that the interface meets the requirements.

Tips:

① Some models do not turn on the OTG switch, and the connected OTG equipment will automatically turn on.

(2) For the system of ②ColorOS 3.0 and above, if 10 minutes is not used, the OTG function will be automatically turned off.

③ When you copy the mobile phone file to the USB flash drive through OTG function, according to the native design of Android system, you will first copy the file to the cache, and then write the file to the USB flash drive in the background. So when you see the prompt that the move has been completed, don't pull out the USB flash drive in a hurry, wait a few minutes and then pull it out, so as not to cause the problem of unsuccessful file copying.

Suggestion:

Copy a file for about 200M and wait for 2 minutes before pulling it out.

Copy a file about 200M- 1G, and wait about 5 minutes before pulling it out.

Copy the file about 1G-5G, and wait about 15 minutes before pulling it out.

④ At present, the capacity of USB flash drive supported by OTG function of mobile phone is 2TB, and the format of large-capacity USB flash drive is NTFS. With the development of electronic products, more formats will be supported.

⑤OTG function does not support formatting USB flash drive for the time being. You can choose to empty all files on the USB flash drive or connect a computer to format the USB flash drive.