Have you been facing issues with your rooted Sony Xperia Tipo ST21i smartphone and want to take it to the service center? No problem, do so but first unroot the device as it’ll restore the warranty that you lost after rooting the device. At the service center, your request will only be considered if your warranty’s alive and that can be done by unrooting the device. So, let’s see how you can unroot your Xperia Tipo ST21i smartphone.
I. Before You Begin:
1. You must have rooted your device using the procedure given here. If you used any other method to root the device, the following procedure may or may not work for you.
2. The following procedure works on Windows based PCs only.
II. Downloading Required Files:
1. Root Package (Download link’s given in the first post)
III. Unrooting the Sony Xperia Tipo ST21i:
1. Place the Root Package archive on the Desktop of your PC.
2. Unzip files from the archive and place them on your Desktop.
3. Enable USB debugging on your device by going to Menu>>Settings>>Developer options>>USB debugging.
4. Now, connect the device to your PC via USB cable.
5. Launch the Root Tool by double-clicking on RunMe.bat file you have on your Desktop.
6. If it asks to choose the mode, choose Normal mode.
7. Select Unroot option in the tool and continue.
8. Follow any instructions you see on your screen.
9. Once unrooting’s done, reboot the device.
10. You’re all done!
Congrats! Your device has been successfully unrooted and your warranty’s now back. Now, you won’t have any issues bringing the device to the service center.
SOURCE:XDA
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