Oppo A3S CPH1803 Stock Firmware ROM (Flash File)

Here you will find the direct link to download Stock Firmware for your Oppo A3S CPH1803 Android Smartphone. The zip package included with Flash File, Flash Tool, USB Driver, and how-to Flash manual instructions. This device running on Android v8.1 Oreo version which is manufactured by Qualcomm SDM450 CPU. Use MSM Download Tool for flash Firmware on this device.

[*] Chipset: Qualcomm SDM450 Snapdragon 450.

[*] Driver: Qualcomm Android USB Driver.

[*] Flash Tool: MSM Download Tool.

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Download Oppo A3S CPH1803 OFP Firmware (Flash File)

Build Number: CPH1803EX_11_A.02_180705

Android Version: v8.1 (Oreo)

Download Size: 4.26 GB

Build Number: CPH1803EX_11_A.03_180720

Android Version: v8.1 (Oreo)

Download Size: 4.26 GB

Build Number: CPH1803EX_11_A.08_180810

Android Version: v8.1 (Oreo)

Download Size: 4.06 GB

Build Number: CPH1803EX_11_A.09_180820

Android Version: v8.1 (Oreo)

Download Size: 4.06 GB

Build Number: CPH1803EX_11_A.12_180927

Android Version: v8.1 (Oreo)

Download Size: 4.13 GB

Build Number: CPH1803EX_11_A.13_181103

Android Version: v8.1 (Oreo)

Download Size: 4.08 GB

Build Number: CPH1803EX_11_A.15_190123

Android Version: v8.1 (Oreo)

Download Size: 4.53 GB

Download Oppo A3S CPH1803 OTA Firmware (Flash File)

Build Number: CPH1803EX_11_A.15_190123

OTA Version: CPH1803EX_11.A.15_0150_201901231647

Android Version: v8.1 (Oreo)

Download Size: 2.08 GB

How To Flash

Step 1: After download the zip package then extract the Firmware.

Step 2: This flashing process required to install Oppo / Qualcomm Android USB Driver.

Step 3: Open MSM Download Tool and select the downloaded .OFP file.

Step 4: Connect your device to the Computer and start the flashing.

Note:

[*] The flashing process can erase the devices full ROM, before starting flash please make a backup for your important data.

[*] After installing Firmware on your Oppo A3S CPH1803 device it will startup with a Factory Default condition. Firmware flashing on your device help to recover Software related dead issue, remove security and upgrade the operating system.