USB Connect Phone

I. USB Connection

USB screen projection steps

Step 1: Turn on the USB debugging mode of your phone.

Step 2: Use a USB data cable to connect to the computer.

Step 3: Open tool Best Total.

II.How to turn on USB debugging mode?

Different models of mobile phones have different ways to open it. Please search on Google.

Different Android system versions have slightly different ways to open USB debugging.

The following uses Samsung, which is more common in the market, as an example to explain.

Step 1	Step 2	Step 3	Step 4	Step 5
Go to Settings on your phone and tap "About phone"	Click "Software Information."	Click the version number 3-7 times in a row until the prompt "Developer mode is enabled" appears.	Return to the settings interface, and "Developer Options" is now displayed.	Click "Developer Options", turn on "Developer Options", and then turn on "USB debugging".

1 .Change the USB charging mode to [Transfer File] or [MIDI]

2. Use a USB data cable to connect the phone and computer

The cable must have a data transfer function, because some cables can only be used for charging

It is best to connect the cable to the USB port on the back of the computer host, which is more stable, and it is best to plug it into the USB2.0 port on the back of the host (black USB port)

3. USB mode screen projection is unstable?

Solution

• The cable cannot be connected (replace with the original cable)

• The tail plug of the mobile phone is damaged (replace the mobile phone device)

• The USB port of the computer motherboard is not powered enough (try to use the USB2.0 port on the back of the host, or increase the power supply of the host)

• If a hub is used, the hub may be underpowered (try to reduce the number of devices connected to the hub)

4.What should I do if USB screen projection fails?

1. Is the system Win7? If yes, it is recommended to upgrade to Win10 or install Android driver.

2. Is the Android system version of the phone above 7.0? Because it is not compatible with those below 7.0, it cannot project the screen.

3. Make sure the USB cable supports data transmission, because some USB cables can only charge, and USB cables that can only charge cannot project the screen.

4. Make sure the USB cable is plugged into the USB2.0 port on the back of the computer host, because the USB port on the back of the host is more stable.

5. Make sure the computer can normally recognize the mobile device connected to the USB cable. If the computer cannot recognize it normally, Best Total will not recognize it even more.

6. Click [Fault Detection] on the Effect Guard software page to see if the mobile device can be recognized. If there is a device and it is not authorized, please re-plug the USB cable or restart the phone. The authorization box will pop up on the phone page. Please click Allow. If there is no device, it means that the computer has not recognized the mobile device. Please check if there are any omissions in steps 1, 2, 3, 4, and 5.