How to enable USB debugging mode on Android? Step-by-step instruction

The mode discussed below (in the original USB Debugging) is a rather useful feature that is intended for developers of mobile applications. It allows you to check programs in various situations. However, for users it will also be quite useful. For example, as a solution to errors with connecting to a personal computer.

However, before you enable USB debugging mode on Meizu or any other Android device model, you should understand what this function allows.

Capabilities

As noted earlier, this mode is most useful for both program developers and ordinary users. Using it you can:

1. Perform testing of an application that is under development.
2. If you enable USB debugging mode with Kingo Root (a special application), it will help to get root access for a smartphone or tablet without unnecessary actions and problems.
3. With it, you can copy or move files from the device to the PC.
4. Install an application that was downloaded to a PC not from the Play Market specialized store.
5. As noted earlier, using this function, you can successfully restore a non-working device.
6. The presented mode makes it possible to install various firmware versions on a smartphone or tablet.
7. Thanks to him, the user can make additional copies of applications, documents and various files.
8. Using this function, you can access the various processes occurring in the system, as well as be able to analyze changes in the behavior of the main components of the device.

Location

Before you enable debugging via USB, it should be borne in mind that on different versions of the firmware the location of the function will be different. The following is a basic list of places where you need to look for it:

• In firmware versions up to 3.0, debugging can be found in the subsection named "Applications", which can be accessed through the settings section.

• And starting with operating system 4.2, this function can be found in the menu for developers, which has been placed in the general list of settings available for change.

Next, you can proceed to the instructions on how to enable USB debugging mode on Android.

How to launch a function?

It should be borne in mind that quite often device manufacturers prefer to hide this feature from the user's eyes. This is justified by the fact that an unprepared user may try to install firmware on a mobile phone that is not supported by them. Or, he may decide to engage in self-reinstalling it, during which an error may occur, leading to a breakdown of the device. As an example, devices from Samsung.

What to do if access is denied?

The following is an instruction on how to enable USB debugging mode on Android:

1. Open the settings window of your smartphone or tablet.
2. Next, go to the tab called "About the device."
3. There, run the item named "Build Number". Keep clicking on this line until a warning pops up saying that the user has been assigned developer status. Now you can start using the special menu.
4. Follow it by selecting the section, depending on the current firmware version. This can be either "Developer Options" or "Accessibility." Options such as Other, More, and Advanced Settings are also possible.
5. Once in the necessary directory, check off the line with the desired function. It will be located on the list first.

If there is no access to the device

This method will be useful for those who have any problems accessing the device menu. For example, a broken screen or general problems with the phone. But before you enable debugging via USB, you should install a third-party Recovery-CWM. Alternatively, the previously mentioned Kingo Root. Now directly to the instruction itself:

• The first thing to do is download QtADB-cwm-edition on your computer and install it. It must be placed in the root directory of the operating system disk.
• After that, download the third version of SQLite. In the same root directory, make the SQlite3_Windows folder and install here.
• After these manipulations, start Recovery mode on the device.
• Connect it to your personal computer.
• Now run the QtADB.exe file. It may happen that the system requires you to enter the adb.ext directory. Follow this step and confirm the changes.
• Now activate the key called Advanced and verify that the Data section is mounted correctly.
• The next step is instructions on how to enable USB debugging mode. In the program window, click on the "Files" button. On the left side, run SQLite3_Windows, and on the right, open the folder with the directory /data/data/com.android.providers.settings/databases/.
• Next, move the settings.db file. It needs to be migrated from database to SQLite3_Windows.
• Using a combination of Win + R, run the command prompt.
• Enter the following here:

1. cd C: \ Sqlite3_Windows.
2. sqlite3 settings.db.
3. update secure set value = 1 where name = 'adb_enabled'.
4. .quit.

• Now open QtADB and transfer settings.db back. Overwrite.
• The last step in the instructions on how to enable USB debugging mode is to reboot your smartphone or tablet.

Next, it is worthwhile to figure out what to do if the above actions do not produce results.

Detection check

If there are no results, it is worth checking the computer for detection. Although it’s worth checking it before you even start the instructions on how to enable USB debugging mode:

1. Verify cable integrity. Walk along its entire length. Pay attention to creases and excesses. Check it on another device or use an optional cord.
2. Reconnect the device to the optional USB port on the computer. Most often, they are divided into those that are located in the case (front), and those that are installed on the motherboard (rear). The second ones are recommended, as they last longer and are of better quality.
3. Connect the device to another computer. If the connection did not happen, and the cord was not damaged, then most likely your phone or tablet has a broken connector. Otherwise, you should take the computer for repair.
4. Disconnect other devices connected via USB. Perhaps the ports simply lack power. Check if you have licensed firmware. You need to download only from trusted sources. Otherwise, you can completely damage the system of your phone or tablet. Also, this will lead to incorrect debugging.
5. Make sure you have the necessary ADB drivers. They must strictly comply with the specified phone model. You can find them on the licensed website of the device manufacturer.