Sony Mobile after seeding Android 7.1.1 Nougat update to Xperia X, now pushing another improvement update for the same device. The update is based on Android 7.1.1 Nougat that bumps the build number from 34.3.A.0.194 to 34.3.A.0.206 also brings in fixes for multiple features, security improvements and other system tweaks to improve stability. The update is packed with the latest security patch for the ongoing month of July 2017 as well, you can go to Settings > About device > System updates, check for the update if available.
If this process didn’t helped you then you can grab the 34.3.A.0.206 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 Nougat based 34.3.A.0.206 firmware on Xperia X via Sony Flashtool.
How to install 34.3.A.0.206 ftf update on Xperia X
Before you begin:
Download latest USB drivers for Sony. Click here
Enable USB debugging. Settings > Developers options > USB Debugging
Process to install the Nougat based 34.3.A.0.206 firmware on Xperia X via Sony Flashtool
Now follow this guide to install stock Nougat 34.3.A.0.206 firmware ftf via Sony flashtool.
That’s it! Give us your feedback or feel free to contact us for any queries.
Download 34.3.A.0.206 ftf for Xperia X. Download (coming soon)
Source: Xperia Blog