Sony mobile started seeding January security patch for Xperia XA1. The update is rolling out now as build 42.0.A.4.167. If you are already running previous 42.0.A.4.153 update then your device is eligible for getting 42.0.A.4.167 OTA anytime soon.
The January patch 42.0.A.4.167 for Xperia XA1 not only installs latest security patch but also performs under the hood improvements in overall firmware. The update brings specific support against Meltdown and Spectre CPU vulnerabilities. While the OS still stays on Android 7.0 Nougat. If you own an Xperia XA1 device, 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 42.0.A.4.167 firmware ftf file from the link below of available and install it manually using Sony flashtool. The whole process is mentioned below just follow the steps in sequence to flash the January patch 42.0.A.4.167 firmware on Xperia XA1 via Sony Flashtool.
January security update 42.0.A.4.167 released for Xperia XA1
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 January security patch 42.0.A.4.167 on Xperia XA1 via Sony Flashtool
Download the firmware from the link below.
Then follow this guide to install January patch 42.0.A.4.167 firmware ftf via Sony flashtool.
That’s it! Give us your feedback or feel free to contact us for any queries.
Download 42.0.A.4.167 ftf for Xperia XA1
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Source: Xperia Blog