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Update Xperia X Compact F5321 to Android 8.0 Oreo Official Firmware

Sony Xperia X Compact F5321 was launched with Android 6.0.1 Marshmallow, back in 2016 in the event of MWC, Spain. In 2017, the phone received an upgrade to Android 7.1.1 Nougat, and the age of this phone hasn’t stopped Sony from supporting with Android 8.0 Oreo.

Update Xperia X Compact F5321

The device has started receiving Android 8.0 Oreo-based firmware from the first week of February 2018. The build number changed from 34.3.A.0.252 to 34.4.A.0.364 with all new features like Autofill, background app limiting, Smart Text Selection, picture-in-picture mode, Notification Dots, and new emoji.

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If you’ve got a Xperia X Compact F5321 lying around and you’re looking to try out the Oreo update, please read the tutorial below.

We have carefully written this post with step-by-step instruction to install Android 8.0 Oreo Official Firmware on Xperia X Compact F5321.

Important tools and Software download links are given below! Continue reading to grab and install it manually.

If you did not receive the update via OTA (Over-the-air) or you are in a Custom ROM, having a variant with an unlocked bootloader, you can update your Xperia X Compact F5321 to Android 8.0 Oreo Official Firmware using the tutorial below. You’ll need to use Flashtool to install the over-the-air update files. (file links are given below).

If flashing via Flashtool is not a new task for you, this guide would not be much difficult. We have covered entire step-by-step tutorial so that a new user can perform the flash easily.

WARNING: All the custom ROMs, Official Firmware, How-to guides, tutorials, roots, hacks, and tricks mentioned on our site belong to the respective developers. We are not responsible if anything goes wrong with your device. Perform it at your own risk.

Xperia X Compact Firmware Details

Xperia X Compact_F5321_34.4.A.0.364_Russia_Generic 8.0.0

This is official stock Sony Xperia firmware.

Model Number: Sony Xperia X Compact (F5321)
Firmware version: 34.4.A.0.364_R2E
Region: Russia (Generic) [1304-9009] Android version: 8.0 Oreo

LIKE this Android 8.0 Oreo Official Firmware for Sony Xperia X Compact? We love it too, and we know you are looking forward to installing it on your phone. Please read the important information below before starting the tutorial.

Preparation – Sony PC Companion [USB tool]

One main reason, people, encounter problems while flashing firmware on their device is due to not installing correct USB drivers on their PC.

Make sure you have correctly installed Sony PC Companion tool on your computer. If not, please download it from our USB Driver Section below and install it correctly. Otherwise, your computer will not be able to detect your device.

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*[Instructions are given below]

Backup your Xperia X Compact

We don’t want you to lose any data, or anything could go wrong unexpectedly. Before starting the tutorial, we strongly recommend you to make a full backup of your existing regional/carrier firmware. If possible, take a Backup via Sony Xperia Companion on your computer, or you can try out some of the hand-picked Android Backup Apps to secure your data quickly.

Points to keep in mind

  1. Make sure your phone has at least 80 – 85% charge. If not, please do charge it before starting the experiment.
  2. This tutorial will WIPE OUT all your DATA. Make sure to create a Backup of everything before starting the tutorial.
  3. You need to perform a Dalvik Cache wipe in recovery mode before installing the ROM.
  4. You need to enable USB Debugging mode to connect your Android phone to computer. (Settings > About Phone > Build number > Tap it 7 times to become developer; Settings > Developer Options > USB Debugging).

Xperia X Compact FTF Firmware file Download

Download Official Android 8.0 Oreo for Xperia X Compact F5321 (FTF firmware file). Use the below decryption key to start downloading.

Decryption Key: !Qb5n7D0MITIrA6RcNjtRL9RytRfirrRbgaD4AmGyyG4

[mks_button size=”large” title=”Download Firmware” style=”squared” url=”!Ro5iESaR” target=”_blank” bg_color=”#1e73be” txt_color=”#FFFFFF” icon=”fa-download” icon_type=”fa” nofollow=”1″]

report this adFlashtool Download

This guide is based on the Flashtool to install Android 8.0 Oreo on Xperia X Compact. So, before attempting the tutorial, make sure you have downloaded and installed the latest Flashtool [version or above] software on your computer.

[mks_button size=”large” title=”Download Flashtool” style=”squared” url=”” target=”_blank” bg_color=”#1e73be” txt_color=”#FFFFFF” icon=”fa-download” icon_type=”fa” nofollow=”1″]

How to install Android 8.0 Oreo on Xperia X Compact F5321 via Flashtool

We have mentioned full step-by-step instructions on How to Install Android 8.0 Oreo Official Firmware on Xperia X Compact F5321. If you are entirely new to rooting, flashing a Custom ROM or an Official Firmware, please read the entire tutorial once before actually performing it on your device.

TUTORIAL: (Step by Step Guide)

Step 1: You need to ensure that you have correctly installed all the driver on your computer for your Xperia X Compact. Make sure to download Sony PC Companion from the above-given link.

[Ensure that you have connected your device to your computer before starting the downloading process of USB and ADB drivers.]

Step 2: Install Flashtool driver from the following location:


Check the “Flashmode Drivers” and “Fastboot Drivers” to install.

Xperia Guide - Flashtool Driver

NOTE: If you are on Windows 8/8.1/10, please follow the steps below:

Press Windows key + R together and in the “Run” box, type “shutdown.exe /r /o /f /t 00“.

Now, make the following selection to boot into Startup setting screen: Troubleshoot > Advanced options > Start Up Settings > Restart.

After that, when the computer reboots, choose number 7 (i.e. “Disable driver signature enforcement”). Your computer will start with Driver signing enforcement disabled until the next restart.

Now, you can install the Flashtool drivers on your computer.

Windows may show a warning message that “Driver is not signed”. Ignore that message and confirm the installation. Once the installation is complete, reboot your PC.

Step 3: On your phone, enable “Unknown Source” in the setting.

  • Navigate to Setting > Security.
  • Check the option “Unknown sources”.
  • Tap OK on the prompt message.
  • Select “Trust”.

Step 4: You need to copy the FTF Firmware file to the following location on your computer:

“C:\Users\[Your PC Name]\.flashTool\firmwares”

It should be like this:

Xperia Guide

Step 5: Open Flashtool software on your computer, and Click on the lightning bolt on the top left of the Flashtool as highlighted in the image below:

Flashtool Guide

Select “Flashboot” and click “OK”.

Xperia Guide

You should be already in the folder where the source file is located. If not, please navigate to the following location:

“C:\Users\[Your PC Name]\.flashTool\firmwares”

Step 6: From the firmware panel, select the firmware build version that you want to flash on your Xperia X Compact.

Make sure Device variant is same as the model number of your phone.

Sony Xperia Guide

Step 7: Click on “Flash” button. Flashtool will show an INFO: “preparing files for flashing”, on the log panel.

Sony Xperia Guide

You need to wait for 60 seconds for the “Wait for Flashmode” pop-up to appear. Once it does, connect your Xperia X Compact to the computer via USB cable.

Xperia Guide

Press and hold “Volume down” button while connecting the USB cable.

The pop-up will get disappeared, flashtool will then start installing Android 8.0 Oreo on your device. You can let go of the ‘volume down’ button.

Xperia Flashing

Once you see “flashing finished” in the INFO message as shown in the image below, your Sony Xperia X Compact F5321 has been successfully updated to the latest Android 8.0 Oreo Official Firmware.

Xperia Guide

Step 8: Now, unplug your device and reboot.

Wait a while, and your phone will not take more than 10 minutes to boot for the first time.

Hurray! Your Sony Xperia X Compact F5321 should have got Official Android 8.0 Oreo installed by now. Go to Settings > About phone to verify.

If you encounter any problem, please comment below, and we will get back to you as soon as possible.

Please don’t forget to share if you have found this post helpful!

Saeed Ashif Ahmed
Saeed Ashif Ahmed is a Blogger who has a keen interest in how emerging technology can help the world become a more just, equitable, and kind place. He enjoys interviewing CEOs of tech startups asking them what they are doing to bring greater opportunity and equity to our society.
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