How to Unjailbreak an Android Device

While it may give you more control over your device, rooting often voids your device's warranty and makes repairs extremely troublesome. Luckily, you can quickly unroot most devices in just a few simple steps. In the case of the Samsung Galaxy, things are a bit more complicated, but with the right tools, it will still only take you a few minutes.

Unlock the jailbreak yourself

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Open the key file manager on the device. Play Store has many file managers that you can use to open lock files on your Android device. Popular managers include Root Browser, ES File Explorer and X-Plore File Manager.

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Find and tap/system/bin/.

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Find and delete filenamesu. You can long-press the file and then select "Delete" from the menu that opens. Depending on how the device was jailbroken, there may be no filessuany.

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Press/system/xbin/.

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Delete filessuthat you found.

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Find and tap/system/app/.

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Delete filesSuperuser.apk.

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Restart the device.

With this method, your device will probably be unlocked after rebooting. You can confirm this by downloading and running the Root Checker jailbreak checking app from the Play Store.

Use SuperSU

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Open the SuperSU app. If your device doesn't have a custom recovery backup installed, you can jailbreak it using SuperSU.

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Tap the "Settings" tab.

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Scroll down to the "Cleanup" section.

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Click "Full unroot".

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Read the confirmation request and click "Continue".

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Do not restart the device when SuperSU is closed.

For most devices, doing so will get them out of jailbreak mode. Some custom operating system backups automatically reboot the device on startup, disabling this method.

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If it doesn't work, use an un-jailbreak app. The Universal unroot app available on the Play Store can unroot many Android devices. Although it costs 20,000 VND, this software can be very useful. However, it cannot be used for Samsung devices (See next section).

Unjail Samsung Galaxy

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Get the original operating system for your device. To unjailbreak your Galaxy device, you will need the original operating system for your device and carrier. You can find them in many places online. Use the search engine, type the Galaxy model name, carrier and the phrase "original operating system". Unzip after downloading and find the file.tar.md5.

Note: This method will not reset the KNOX counter, which is how Samsung determines whether your device has been jailbroken or modified. At this point, there is a way to crack the code without causing the KNOX counter to jump. However, if the device is jailbroken using older methods, resetting the counter is completely impossible.

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Download and install Odin3. This is an Android development tool that allows you to push the stock operating system from your computer to your Android device. You can find the installation file at Odin's XDA page here.

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Download and install Samsung drivers. If you've never connected your device to a computer, you'll need to install the Samsung USB driver. The fastest way is to download from Samsung here. Download the ZIP file, double-click to open and extract the installation file. Run the installation file to install the driver.

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Turn off the device. You will have to reboot in special mode.

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Hold down the volume down button, Home button and power button. Your device will start in Download mode. Connect to computer using USB port.

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Run Odin3. A blue box will appear to the left of the "ID:COM" section. If you don't see it, your Samsung USB driver is probably not installed correctly.

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Press the button . PDA on Odin3. Open the original operating system file.tar.md5just downloaded.

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Check the "AP or PDA" box and the "Auto Reboot" box. Make sure any other boxes are unchecked.

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Press the button . Start to start the jailbreak process. It may take 5-10 minutes. When completed, you will see "PASS!" (Done) in the top box of Odin 3. Your Galaxy will boot with the regular TouchWiz operating system.

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Restore factory settings to fix the automatic restart problem. If after opening it, the phone keeps restarting on its own, you need to perform a factory reset. This will erase everything on the phone.

Press and hold the power button to turn off the device.

Hold down the volume up button, home button, and power button to boot to the Recovery menu.

Use the volume button to select "wipe data/factory reset" and press the power button to select.

Select "wipe data partition" (wipe the data drive) and then select "reboot system now". Your Galaxy will reboot, erase all data and return to factory settings. export.