Whether you need to update your phone to the latest software release from Sony, or your phone has stopped working, or even if you’ve bricked your Xperia device. This simple tutorial is your rescue which covers all the steps to Unroot Any SONY Xperia Device and Install Stock ROM Easily.
Although you do not need to unlock your bootloader for this process, it is a custom to do so just to be safe. It is still up to you.
Warning: Unlocking the bootloader will wipe your DRM partition and OEM function like the Sony image processing and Bravia Engine won’t work. Me? I didn’t really care because I didn’t see much of a difference.
Once you have planned to play with the Android operating system, its also safer to have a complete backup of the device that helps you get all your data and files back once things goes wrong. It is highly recommended that you always have a backup stored somewhere safe for instances like this because this process will wipe your data.
Things You Need
A Sony Smartphone with a Locked or Unlocked Bootloader
- SPFLASHTOOL Link
- Working USB drivers
- Relative Firmware for your device. Can be downloaded from FLASHTOOL
Let’s Begin with the Guide
First thing’s first. Download and Install the latest spflashtool from the link provided above and setup necessary drivers.
Download Required Firmware
Step 1: Open spflashtool and wait for the process to finish. Then click on XF button to open Xpirifirm.
Step 2: Find your device and select relevant model. Now select you desired Customized Region for example Customized UK and download the available Firmware.
Step 3: After the download is done you should let it unpack. This might take a while.
Step 4: Close Xpirifirm.
Unlocking the Bootloader
Warning: This Process will void your warranty.
Step 1: Click on the BLU button and connect your device in flashmode. In order to do so follow the onscreen instructions to connect to flash mode.
Step 2: Copy the IMEI number.
Step 3: Go to Sony unlock bootloader web page Link. Select your device and click continue.
Step 4: Enter your email address and accept the agreement and continue.
Step 5: You should receive an email from sony with the link to next process.
Step 6: Open the link and enter your IMEI and check the relevant checkboxes and click Submit.
Step 7: Copy the Unlock code and paste it into spflashtool and click Unlock.
Voila! you have successfully unlocked your bootloader.
Installing the ROM
Step 1: Open Flash tool and click on that lightning button.
Step 2: Select Flashmode and select your firmware. You should see something like this.
Step 3: In MiscTAExclude , Exclude SIMLOCK.ta, Cust-reset.ta and OSV restrictions.ta if any.
Step 4: Select Wipe Apps_log and userdata. This action will wipe all your data.
Step 5: Click Flash and wait for flashtool to prepare for the process. This might take a while.
Step 6: At this point you should see on screen instructions to connect to flash mode. Do so and let flashtool do its thing.If it asks you to select FSD click yes and you’re all set.
Step 7: When done reboot your phone and enjoy the latest release of Sony Rom. If your phone was bricked it’s fixed now.
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