OTG stands for On-The-Go. Through OTG adapters and OTG cables, the Micro-USB or USB Type-C interface of the device can be converted to a standard USB Type-A female port, so that most devices with USB standard interfaces can be connected and used.
It is mainly used for connecting various devices, such as connecting mobile phones, MP4 and other devices to USB flash drives, mobile hard drives, keyboards, mice, etc.
Several commonly used OTG connection methods are listed below:
1. Mobile phones connect to storage devices such as USB flash drives and mobile hard drives through OTG, which is convenient for viewing data on storage devices without a computer when going out;
2. Pads, mobile phones, etc. connect to mouse, handles, keyboard light operation devices through OTG, which can bring a very extreme innovative experience to enthusiasts;
3. Players such as Pads, Xiaomi boxes, MP4s, etc. connect to storage devices such as USB flash drives and mobile hard drives through OTG. Since the capacity of the playback device is limited, the OTG function is equivalent to an unlimited increase in the storage capacity of the playback device, which is very practical in daily use.
Of course, there are many scenarios and operations that will use the OTG function. With the popularization of mobile devices such as Pads and mobile phones, the OTG function has played a very convenient role in people's daily lives.
The way of using OTG is listed below:
Take the Xiaomi smartphone connected to a USB flash drive as an example, insert the Type-C port or Micro-USB port of OTG into the mobile phone, and then insert the USB flash drive into the other end of the OTG data cable, and the mobile phone can read the contents of the USB flash drive.
If you need to connect other USB devices, just plug in the corresponding USB interface.
If OTG is connected to another mobile phone through a data cable after the OTG adapter, then the mobile phone A connected to the OTG adapter will charge the mobile phone B connected to the data cable, which is also called wired reverse charging.
Solutions for unable to use after being connected to OTG:
1. If the mobile phone OTG supports external USB flash drives, the format must be single partition and FAT32 file system format. If this condition is not met, it is recommended that you re-partition and format the USB flash drive to the FAT32 format;
2. Replace the connection cable;
3. Restart the phone and reconnect OTG to try to solve it;
4. Update the system to the latest version to try;
5. If it still cannot be loaded, it is mainly because there are many types of USB flash drives on the market, and some USB flash drives have higher requirements and cannot be used. It is recommended that you try to replace a USB flash drive and wait for the system to update.
Whether can OTG supply power for other devices is listed below:
1. The standard OTG output current is 500mA (such as the Micro-USB interface of mobile phones and Xiaomi pad), which can meet the power supply needs of most USB devices. Some specific devices support OTG devices with larger currents. The specific situation is subject to the actual situation of the device;
2. Even if the power supply is sufficient, it is possible that incompatibility will cause power failure;
3. This function can be used as a temporary charging method. It is not recommended to use it for a long time to avoid affecting the battery.
The reason for the inability to use functions as video output after connecting the docking station with OTG:
Since the actual effect is to convert to a standard USB interface and use the USB data channel, non-USB interface functions cannot be used, such as video output, projection, etc.
Similarly, if the transferred device uses a non-standard USB protocol or requires a separate driver installation, it will not be used, such as a USB interface drawing tablet, camera, printer, etc. It is recommended that you inquire about the specific compatibility with the USB device manufacturer.