Update to S254 version, for system update.

The upgrade pack is large and it is highly recommended that you download it via wifi

Please make sure your smartphone is not Rooted.Also,ensure you have at least 40% battery and 1GB free storage space. Strongly recommend you reboot your system again once the upgrade is finished. Please contact your local service center in the rare incidence of any trouble.
Thanks.

1. Updated the security patch.
2. Improved the system stability.
3. Updated the power saving application.
4. Fixed some language compatibility issues.
5. Optimized the effect and performance for shoot.