New answers tagged unrooting
Check out the XDA FAQ thread for the Galaxy Ace II X. After you thoroughly research rooting and its pros/cons, if you decide to root, the instructions are in that thread. Since you are on a Mac, you will not be able to use Odin, which is designed for Windows. You will have to use the Mac/Linux alternative, JOdin, as explained in this video. Good luck! ...
There is an option in SuperSU in the settings tab, called Full Unroot, use that and it will remove root from your device.
On a rooted device, you can use BootUnlocker to re-lock the bootloader without using fastboot. You can also use it to unlock the bootloader again without wiping data. I use it to keep my bootloader locked most of the time, but unlock it prior to installing a system update or doing anything else that might require re-rooting via fastboot flash.
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