OPPO A3S (CPH1803)By Galaxymobiltech / February 1, 2025 Rate this post CPH1803EX_11_A.13_18110 Download Now Firmware Details Device Model: Oppo A3s (CPH1803) Firmware Version: CPH1803EX_11_A.13_18110 Android Version: Android 8.1 (Oreo) ColorOS Version: ColorOS 5.1 Security Patch: October 2018 Release Date: November 2018 Facebook 0 WhatsApp Pinterest0 Twitter 0 0Shares