Sony after updating Xperia XZ Premium on February 2018 patch now started seeding Xperia XZ, Xperia XZs and X Performance with the same update. The update brings fixes for ‘Meltdown’ and ‘Spectre’ patches, with February 2018 security patch and minor improvements. The February 2018 security update for Xperia XZ, Xperia XZs and X Performance is arriving as build 47.1.A.12.75 once installed on the device patches the ‘Meltdown’ and ‘Spectre’ vulnerabilities and a bunch of other improvements in the System to enhance stability.
The February 2018 patch 47.1.A.12.75 doesn’t increments the OS that stays on Android 8.0 Oreo. If you own an Xperia XZ, Xperia XZs or X Performance, then give a try to capture the OTA manually, go to Settings > About phone > System updates. If this process didn’t helped you then you can grab the firmware ftf file from the link below and install it manually using Sony flashtool. The whole process is mentioned below just follow the steps in sequence to flash the February 2018 patch on Xperia XZ, Xperia XZs and X Performance via Sony Flashtool.
Update February 2018 security patch with ‘Meltdown’ and ‘Spectre’ on Xperia XZ, Xperia XZs and X Performance
Before you begin:
Download latest USB drivers for Sony. Grab them
Set up Adb and fastboot drivers. Follow this guide
Enable USB debugging. Settings > Developers options > USB Debugging
Process to install stock firmware on Xperia XZ, Xperia XZs and X Performance via Sony Flashtool
Now follow this guide to install stock firmware ftf via Sony flashtool.
That’s it! Give us your feedback or feel free to contact us for any queries.
Download 47.1.A.12.75 ftf for Xperia XZ, Xperia XZs and X Performance.
Grab it here
We will update the links soon
Source: Xperia Blog