Immediate recommendation: If device still uses Google's mobile platform 10 with ColorOS 7.2, apply official upgrade to Google's mobile platform 11 / ColorOS 11 to gain improved security patches, UI refinements, and background process optimizations. Confirm availability via Settings → Software Update; download over Wi‑Fi, keep battery above 50%, and create a full backup before installation. Launch OS: Google's mobile platform 10 (ColorOS 7.2), market debut September 2020. Official upgrade rollou...