" Programs
Anton Nazarenko 02/19/2018
Many smartphone owners want to have full control over their mobile device by obtaining root rights (superuser privileges).
This is done even if the device is in the warranty period of service, which will void the warranty.
To manage extended permissions, the SuperSu , but sometimes it crashes, giving the error “SU file is busy.”
Let's look at how to resolve the error and get rid of this warning to grant enhanced privileges to the required programs.
Contents:
- A little theory
- The easiest way
- The second way
- Command Line for Advanced Users
- Root rights via Framaroot
A little theory
The SU binary file itself provides those advanced powers, giving the user the ability to perform any operation on their device, including modifying most system files.
Without this file system object, you will not have root rights.
Even when the SU is not up to date, SuperSU will provide the necessary privileges in most cases, but constant warnings and possible bugs and gaps in an outdated SU can be a problem.
Rice. 1 - SuperSU
SuperSU and similar programs allow you to manage the obtained capabilities, allowing or prohibiting other applications to run under the super administrator.
So, let's figure out what to do when SuperSU or similar system applications offer to update the binary file.
The instructions are relevant for situations when a message appears with other problems regarding the SU: it is busy or absent (not installed).
How to install the Su binary file on Android using custom Recovery
Did the method described above not solve the problem? Well, this is possible, especially for HTC models. In this case, you will have to use custom (alternative) recovery. And if you don’t have it installed yet, but you still have the desire to become an advanced user of the Android OS, then you will have to install it sooner or later. Because this tool will allow you to perform many necessary operations: create backups, install system updates or flash your Android with a different version of the operating system (ROM), etc.
We will not tell you now how to install custom Recovery, because this is a topic for a separate conversation, and if you are interested in it, write, and we will tell you in detail how to perform this operation.
Now we will assume that you are on topic and return to our question. That is, if you have a custom recovery (or you know how to install it), then look at the last screenshot, and instead of the “ Normal”
", press "
CWM/TWRP
". After completing the procedure, we reboot the smartphone, after which, along with the system update, the Su binary file will also be updated.
The easiest way
For many users on many devices, the problem is solved very simply, and no knowledge or additional software is required.
The method is to uninstall the current version of SuperSU and install its previous edition.
It is unknown how the device will behave with the previous release of the application, because the program is updated periodically, but it has been noted that switching to SuperSU v2.79 solves the problem.
Rice. 2 – SuperSU rollback to version 2.79
You can get an old release of the utility by finding an archive of its versions on any forum or portal, for example here.
The second way
There are several ways to solve the problem. Let's start with the simplest for a beginner.
It consists of using a Chinese (no need to be afraid) utility, through which many receive those treasured advanced powers for complete control of their smartphone or tablet.
This is Baidu Root program.
It is not available in the Google Playmarket because it is a hacker, and careless and inept handling of the functionality can lead to problems, for example, you will need to reflash the device.
- Download the utility from a trusted source. Since the official website is not working at the moment, it can be downloaded from the 4pda forum as an apk file.
- We launch it, accept the terms of use and give all the required privileges, having previously enabled the installation of applications from untrusted sources in the settings of your smartphone.
Rice. 3 – Terms of use of Baidu Root
- The next interface is a window with the name of the model of the device being used and another button (“Get Root”). We click on it, which will give superuser privileges, thereby updating the binary file, which is what we need.
Rice. 4 – Getting root
- Afterwards, the smartphone will reboot, Baidu Root will launch and require SuperSU to have advanced powers. We provide them.
- Next, you will be asked to update the binary file. The left button prohibits updating, the right button allows. Click on the last one (“Continue” in the Russian version).
Rice. 5 – SU Update
- Next, you need to click on the “Normal” button in the window asking you to use custom recovery, if available.
Now errors with the SU file, whether it is busy, not updated or missing, will disappear.
Supersu Binary
SuperSu binary needs to be updated?. Generally, this SU Binary
is an error caused by all Android Devices. In the SuperSU app, you can access management through “SU Binary”. Sometimes, if you Install SuperSU you can't get the SuperSU access Management solutions any longer. The main reason for this error is due to the SuperSU latest version. It is somewhat difficult to overwrite the SuperSU binaries. For that, you can manually flash SuperSU Zip through recovery mode.
If there is no SU binary Installed and you can't install it. Then just you need to upgrade the Android version and Reboot the Android device. If these fixes do not work, which means the bootloader is locked and restrict changes on your device. Moreover, you can search on google for the respective model number to unlock bootloader and try to fix. Another way to recover is, you can get a custom recovery and fix the flash.
How to update Supersu Binary?
- Download Supersu binary apk file just by clicking on the link below.
- Then, go to ES File Explorer —-> MicroSD—-> Tap on SuperSU.apk/ SuperSU.zip.
- Tap on Install.
- After Installation, if you get the Installation blocked message. Then, go to Settings—–> Security Settings—-> Enable Unknown sources.
- It prompts as “Do you want to Install App”?
- Tap on Install.
- Tap on Menu —-> You will find SuperSU app icon —-> Click on it.
- It prompts whether you are New User/ Expert.
- If you are Expert click on “Expert”. Otherwise, Tap on “New User”.
- It displays “SU Binary Update, Continue?”
- Tap on continue—–> Normal.
- Wait a few seconds till the Installation completes.
- In case, if it takes more than 4-5 minutes, Reboot your device.
- If it is successfully Installed, if you wish to reboot, Tap on “Reboot”.
If you follow the above process you can fix Supersu update binary error. In case, if it does not work, then go for the below-mentioned process.
There is no SU Binary Installed and Supersu cannot Install it
During the Supersu Binary Installer process, you face any error as you see in the above then simply follow the below steps to solve the error.
If you follow the above steps exactly you can fix the Supersu Binary not Installed error.
How to Fix SuperSU Binary update on Android Device?
- Go to Settings.
- Tap on “Update/ Repalce/ Install SU Binary.
- Confirm the root-using applications are using the SuperUser solution which uses the Superuser.
- Now, Uninstall SuperSU.
- Click on the link below to get the latest SuperSU update.
- If you Install TWRP custom recovery/ CMW you can open the SuperSU apk with the flash Zip file.
- Then, you can get the updated version of the SuperSU on your Android device to get rid of all the SuperSU Binary Failed issues.
Steps To Replace SU Binary
- Open your Android device and tap on “SuperSU” icon.
- Search for the option to “update/ Relace SU Binary/ Install”.
- Click on Confirm.
- Then, if you follow the instructions you can easily Replace SuperSU with SuperSU Binary.
Today we will talk about the most common error that occurs when launching the SuperSu program. The problem itself appears in the form of a notification with the following content: “There is no SU and SuperSu binary file.” How to update a binary su file on Android? You will learn about this from our material.
SuperSU is a special administration application that allows advanced management of all installed applications. In other words, with SuperSU you get complete control over your Android device. More details about the program:
So, when I launched SuperSU, the following message appeared on the screen:
It needs to be clarified here that the Su file is a fundamental component of the “Superuser” rights, so by deleting it you lose root rights. And even if you have an old version of SuperSU, which does not exclude the possibility of working on it, then problems associated with performing any operations will definitely arise. Therefore, you will have to update, or rather, correctly install the Su binary file in any case.
To do this, we will need to download and install the Baidu Root program. This application is not available on Google Play, so you can open any browser and find this utility, or click on the link provided and download it directly from this page. After which the downloading of the ark file will begin, the process of which will be visible on the display:
Now we need to open the file and click the “Install” button. When asked for permission to install, click the “OK” button:
Then a window will open with information about the data to which the application will gain access, and a warning about the responsibility of the user himself. We agree with everything, and now, the installation of Baidu Root is completed:
After installation, two buttons will appear at the bottom of the display on the right and left, click on the right one, after which a blue monitor will appear in the center of the screen, where your Android model will be indicated, and a blue button in the center (get root), click on it, after which a reboot will occur apparatus. Now we try to launch the SuperSU application. A request for Root access (Superuser rights) will appear from Baidu Root, we provide it. Next, a request will appear to update the SU binary file, click the “Continue” button:
Then the program will offer a way to install the SU file, select “Normal”. The installation process will begin, which the system will inform us about, and all our efforts are crowned again by a message from the system that the installation was completed successfully, click “OK”:
That’s it, the procedure is completed, and we can fully use the SuperSu program and use all the tools available in the program’s arsenal, including carrying out the so-called. temporary 'unroot' on your device.
Command Line for Advanced Users
There is also a less simple way to solve the problem, which is better to resort to if the previous ones did not allow you to get rid of the error, for example, Baidu Root was unable to root your device.
1 Download the Terminal Emulator program and install it.
2Download and install Root Browser (its role can be performed by any file manager that supports root).
3Download the zip and unzip its contents into the “ updatersu ” folder in the root of a removable flash drive or mobile device memory (it is recommended to choose the second option).
4Open the file manager Root Browser or its equivalent and copy the objects .has_su_daemon, .installed_su_daemon and install-recovery.sh from “updatersu” to the “/system/etc” directory.
Rice. 6 – Copying files
5In order, open the properties of these files and set the following rights for them (see screenshot):
- .has_su_daemon – three checkmarks in the first column and the first one in the second;
- .installed_su_daemon – check the first checkboxes in columns one and two;
- install-recovery.sh – check all the checkboxes in the first and third columns, as well as next to the “Owner” item in the second.
Rice. 7 – Permissions
6Go to “/system/bin”, add a new directory called “.ext” and set the following rights for it:
- the first items of the first and second columns;
- mark the third column completely.
7Open “/system/xbin” and copy our SU from there to the new folder that was created in the previous step “/system/bin/.ext”.
Rice. 8 – Renaming SU to .SU and setting privileges for it
8Open the document renaming menu and add a dot in front of its name, after which we set the privileges shown in the screenshot below for it.
9Launch the Terminal Emulator .
10In order, enter the following commands:
- su
- mount -o rw, remount /system
- In –s /system/etc/install-recovery.sh /system/bin/install-recovery.sh
- /system/xbin/su --install
Rice. 9 – Execute a series of commands
11Now we manually reboot the device, and after it starts, open SuperSU and try the normal update of the SU file.
Solution
The Android operating system takes smartphone users to a whole new level of control, and the functionality of a root device, which allows you to install root applications, custom kernels and ROMs on it, makes its advantages even more obvious. However, after rooting the device and installing SuperSU (the most popular of the many Superuser admin apps available on the Play Store), many Android users are facing and trying to resolve the “SU file is busy” error. What to do? This error is most often caused by an incorrect installation or a damaged SuperSU binary file. Most of the users who experience difficulty in rooting their Android device try to get rid of the problem in various ways. If you also encounter the “SU Binary Occupied” error, use only the proven and working methods described below.
Updating the SuperSU binary file
To update the SuperSU binary file on Android, follow these steps:
- Go to the official SuperSU website.
- Download the previous (not the latest!) version of the APK file on your phone.
- Install the APK file.
- After installation, launch the application. A dialog box will open: “SU Binary needs to be updated.” Click Continue and then click Normal.
- The installation of updates will take a couple of minutes. Reboot your device.
- Once your device turns on, go to the Google Play Store and check for updates. Update the SuperSU app to the latest version.
Even after updating to the latest version, the application may prompt you to update SU Binary. Just follow the steps and reboot your device. And the problem will no longer arise.
Via command line
Rooting Android allows you to unlock new interesting features. After rooting your Android device, you can easily do things you couldn't do before. If after installing SuperSU the “SU file is busy” error appears, you can fix it through the command line. So, to begin with:
- Download and install Terminal Emulator for Android.
- Find and download “Replace_Kinguser_with_SuperSU-v2.4.zip”. Unzip the file.
Steps to resolve SU Binary Occupied error:
- Extract the Replace_Kinguser_with_SuperSU ZIP file and transfer the extracted version to the internal memory of your device. Install Terminal Emulator for Android and extract the Replace_Kinguser_with_SuperSU. After that, move the extracted “mrw” folder to the external drive.
- Open Terminal Emulator and enter the commands.
Open the terminal application and enter the command “su”, after entering you will be prompted with a window asking you to refuse/provide features. After granting permissions, you will need to type the following line of code:
IMPORTANT. After entering this command, you may receive an error that you should ignore. SuperSU will start in automatic or manual mode.
After this, restart your smartphone and you will see that SuperSU is installed, updated and working without errors.
