Unlock Bootloader for Sony Xperia U ST25i

Procedure to Unlock Xperia U ST25i Bootloader

Sony Xperia U is the NXT Series Smart Phone. It is called as one of the next generation Smart Phones from Sony. It has a price of approximately 189 USD. This device is really powerful and has some amazing specs and features that you will love. The good news is, you can power up your phone by unlocking the bootloader. By unlocking the bootloader you can flash custom ROMs on your Android. But the only issue is, unlocking bootloader of Xperia U makes the warranty void. Even though the method that is available is an official one, the warranty will get void. But there are many benefits that will come up for you. You can relock the bootloader in case if you wish to claim back the warranty. However, in this article we will show you the method as to how you can unlock bootloader for Sony Xperia U ST25i.

Disclaimer: This information has been produced with complete for increasing the simplicity of the procedure. But in case if some issues occur after the bootloader is unlocked, the site should not be held responsible for this. If at all you face any issues, you can contact us and we will help you sort out the same. It is also vital to keep in mind that when unlocking boot loader is done, the device warranty gets void. And this means that the warranty is not to be considered then. There are chances that with this the phone may get bricked or there may be some damage permanently.

 Pre-preparations:

Charge the phone to the extent of 70 percent.

Take complete back up of the phone.

Enable USB debugging.

With the procedure given below you will be able to unlock bootloader.

Unlock Bootloader for Xperia U ST25i

Click on this link: http://unlockbootloader.sonyericsson.com/instructions. In this link you will find Continue on the bottom of the page. Click on Continue.

You will get a pop up window and it will ask whether you really want to unlock the boot loader. If you are sure then click Yes, I’m sure.

Read all the details and accept the legal terms. Click I Accept.

Fill in the details such as your name, e-mail address, the first 14 digits of your phone’s IMEI number and the two CAPTCHA words in the input boxes. Click Submit. You will now be able to view the IMEI number by entering *#06# on your phone.

The unlock boot loader key is displayed. Save it for later use.

Download and install the latest Android SDK and also download and unzip this file.

Make sure you are running Google USB Driver package revision 4 or higher in your Android SDK.

Since the file is unzipped you can place it in the usb_driver folder.

Switch off the phone.

Now push and hold the unlock button *simultaneously when you connect the phone to the computer with the USB-cable.

Now you should select the Android Boot loader Interface-file.

Now open a command window and go to the tools folder that is there in Android SDK folder.

Enter fastboot.exe -i 0x0fce getvar version, and this will give you some response back and this means your phone is connected properly.

Enter fastboot.exe -i 0x0fce oem unlock 0xKEY, where KEY is the unlock boot loader key you got in the beginning of this instruction. The boot loader should now be successfully unlocked. This is the last and the most vital step. It will unlock the boot loader. This is how you can easily and officially unlock the bootloader of Sony Xperia Xperia U ST25i.