OTG function of mobile phone

OTG function how to use otg function?

1. First, we open the "Settings" of the mobile phone, and we find the "General" setting in the settings.

I'm using an OPPO phone here, and the OTG function settings of other phones may not be found like this, but they should all be set. 2. In the general settings, we pull to the bottom to find "More" and open "More". We can see that the last option is "OTG connection", and then we click "Open".

Then we can start using this function. If we want to connect our USB flash drive with our mobile phone, we need another tool-OTG converter, which can be bought online.

One end of this converter is an interface for connecting a mobile phone, and the other end is an interface for connecting a USB flash drive or other data lines. 4. After connecting the converter with the USB flash drive, we can plug it into the mobile phone. After plugging it into the mobile phone, we can see the prompt "USB storage device is connected". At this time, we can open the file management and see that our USB flash drive has been connected to the mobile phone.

5. If we want to pull out the USB flash drive, we can click "USB storage device connected" that just appeared, and then "USB storage device uninstalled" will appear, and then pull out the USB flash drive. Of course, you can also directly put the USB flash drive * * *, and at this time, "USB storage device has been unexpectedly disconnected" will be displayed.

In fact, this is the same as pulling out a USB flash drive on a computer. .

What is OTG function?

OTG is the abbreviation of USB On-The-Go, which can read data USB flash drives and mobile hard disks, connect keyboards and edit pictures. It is mainly used to connect different devices or mobile devices and exchange data.

Especially PDA, mobile phone and consumer equipment. It changes the inconvenience of data exchange between memory cards with up to seven standards by replacing connectors with different standards among digital cameras, video cameras, printers and other devices. After inserting the device through the OTG cable, you can view all the information in the device in the file manager of the mobile phone.

Most digital cameras don't have this function, and some Android cameras may have it.

Extended data:

According to the protocol of USB interface, OTG can be divided into the following categories:

1、USB 2.0 OTG；

2, micro-5PIN OTG: a common Android phone OTG interface;

3. Mini 5PIN OTG: a common android tablets OTG interface;

4. Micro USB3.0 OTG: OTG interface of high-end mobile phones such as Samsung NOTE3 and Galaxy5;

5. Class C OTG: See Class C OTG interfaces such as LeTV mobile phone and Huawei mobile phone.

References:

Baidu Encyclopedia -OTG Principle and Application

What does oTG mean? ：

What does it mean for mobile phones to support OTG? What is the function of OTG? Let me give you a detailed introduction!

A mobile phone supporting OTG refers to a mobile phone directly connected to external devices such as USB flash drive, card reader, MP3, keyboard and digital camera for data transmission, input operation or charging, without using a computer as a transit station.

OTG is the English abbreviation of On-the-go, which is an extended function of wireless communication equipment or mobile equipment, and has high practicability. Simply put, it supports external USB flash drives. Through OTG line, you can read and write files on the USB flash drive like a computer.

The above is an introduction about what it means for mobile phones to support OTG. I hope the above introduction can help everyone.

What does USB otg function mean? What does cell phone OTG mean?

Nowadays, with the increasing popularity of smart phones, this function is also more popular. Specifically, it has been widely used in smart phones, mobile phones and tablet computers, and there are also many types of connecting devices. Including digital camera, video camera, printer, mobile hard disk, walkman and even mouse can be connected and controlled.

The development of USB OTG function also makes mobile devices get rid of the shackles of PC devices and can directly connect various devices in a simple way. If the traditional mobile phone does not have OTG function, it needs to be adjusted by PC. The PC acts as the host of the information chain. Under the OTG function, the digital camera can directly connect to the printer and print photos, instead of copying photos to the PC first and then connecting them through the port of the PC.

It can be seen that HTC butterfly supports USB OTG function and can directly connect external memory cards through OTG converters. In this way, some large storage materials (such as high-definition movies) can be directly placed in the memory card, and then connected to the mobile phone through USB OTG function. Smart phones can directly read and play data.

You can even connect a mouse. After connecting the photoelectric mouse to your mobile phone, you can browse the web directly. This control touch is naturally stronger than touch operation, and it has the feeling of PC. If the application can support OTG function, it will be much more convenient to run some applications.

How to turn on OTG function of mobile phone?

1. Take Huawei mobile phone p8 as an example, find the "Settings" option on the desktop and click Open.

2. In the setting interface, find the "More Settings" option and click Enter.

3. On the More Settings page, locate the OTG option and click Open.

4. On the OTG page, click the development option on the right to open the OTG function of the mobile phone.

Where can I turn on the OTG function?

OTG function is limited.

How to turn on the OTG function of a mobile phone with limited OTG function? The following mainly introduces two methods.

Software is used to retrieve OTG. In fact, many Android phones do not support OTG, but are "shielded" by technical means. There are two main shielding methods:

1. Streamlined 5V booster module

The biggest feature of supporting OTG mobile phone is that it can be charged when connecting another mobile phone with OTG cable. Therefore, if the mobile phone does not support OTG, it may simplify this 5V boost module.

2. Delete key system codes

The system/etc/vold.fstab file in the root directory of Android system contains a set of codes that enable OTG function, and some vendors will block OTG function by deleting relevant codes.

Method 1: Open the OTG function of the mobile phone by adding code.

At this point, we have figured out the principle of blocking Android phone OTG. If we want to retrieve this practical function, we need to start from both soft and hard angles. In terms of hardware, we need to purchase an additional OTG line equipped with DC5V power supply, and get additional power supply when connecting with a mobile phone to simulate a 5V booster module.

We can copy the following code into the text document first, and then copy it into the memory of the mobile phone.

# u * * * otg disk dev _ mount u * * * otg/mnt/u * * * otg auto/devices/platform/mt _ u * * */devices/platform/mu * * * FSH _ hdrc

Next, run the RE Manager on the mobile phone (ROOT permission is required), then open the system/etc/vold.fstab file with a text editor, add a blank line at the end of the code, and finally paste the code here to save and exit and restart the mobile phone.

The second method is to open OTG by installing OTG assistant.

If an external mobile hard disk is needed, the charging end of the OTG line needs to be connected with a 9V or even 12V charger. This method is suitable for most Android phones with MediaTek scheme, but I can't guarantee the success rate of 100% for phones without MTK chip.

Now use the OTG cable with power supply to connect the mobile phone to the USB flash drive. Can the USB flash drive be recognized by the system?

The above is the way to open OTG function on Android phone and share it with you. I hope it will help everyone.

How to turn on OTG function

OTG is a USB transmission technology. Through OTG jumper, the mobile phone 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 your Huawei mobile phone supports OTG function, 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 cable, so that A can charge B ... (Mobile phone A needs to support OTG).

(2) Connect the mouse and keyboard: When connecting, the mobile phone needs to provide power for the mouse or keyboard. Due to the high power requirements, some devices may not work normally. If you encounter this problem, try replacing the mouse or 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 the USB storage device.

How to use OTG function correctly?

1, otg: it means On-The-Go, that is, the mobile phone is directly connected to external devices such as USB flash drive, card reader, MP3, keyboard and digital camera for data transmission, input operation or charging, without using a computer as a transit station. Nowadays, many mobile phones support otg function, which provides a lot of convenience for us to transmit data.

2. First, we need an otg data cable to connect the mobile phone and the otg data cable.

3. Then use the u *** interface of otg data cable to connect the device you want to transmit data with your mobile phone.

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Then wait for the phone to connect with the device successfully, and then you can operate.

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So how do you use the otg function of your mobile phone? We can connect the keyboard or mouse (or wireless mouse) to the mobile phone without installing any drivers, so that we can operate directly on the mobile phone through the connected keyboard or mouse.

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In addition, we can also connect the USB flash drive with the mobile phone. After the connection is successful, we can directly read all the contents of the USB flash drive in the mobile phone. Pictures, videos and songs can be easily identified. We can play the video on the USB flash drive directly on the mobile phone. Is it convenient?

What is the OTG function of mobile phone?

OTG refers to the function of directly connecting the mobile phone to external devices such as USB flash drive, card reader, MP3, keyboard and digital camera for data transmission, input operation or charging, without using a computer as a transit station.

Through OTG technology, USB interface accessories can be extended to intelligent terminals to enrich the functions of intelligent terminals, such as expanding remote control accessories and turning mobile phones and tablets into universal remote controls.

Extended data:

The origin of OTG development:

Since the specification of USB 1.0 in 1996, USB-IF (Universal Serial Bus Implementer Forum) has published several specifications such as USB2.0 and USB OTG, among which the transmission bandwidth of USB2.0 has reached 480Mbps.

And USB OTG makes USB devices get rid of the limitation of the original master-slave architecture and realize the end-to-end transmission mode. With the continuous improvement of USB specification, the application field of USB has also been expanded. The original intention of USB is to simplify the connection between the computer and its peripheral devices.

It is first used for keyboards and mice. The application of USB has expanded from PC peripherals to consumer electronic products and communication electronic products. The most important application is in consumer electronic products such as digital cameras.