Hi Guy, Download the A3s CPH1853 Stock firmware or stock ROM, and flash the Smartphone right away. Here you will get the exact flash file for the R831 model. It is compatible with all Windows versions. Also, the developer team has made this firmware specifically for the flashing R831 Device. Though flashing the firmware can solve many complex issues, it has a few risks involved. So, before initiating the flashing, we recommend getting a full backup of your device.
Why do you Need A3s CPH1853 Flash File?
You can use this R831 firmware file to upgrade or downgrade the software of your device. Nowadays, expensive Smartphone’s are getting riskier because of installing malware-infected apps on your phone. Also, while browsing the internet, your device can be infected by the virus. Once your device gets affected, it will be more difficult to remove them. In that case, you can flash the Smartphone using this flash file. To flash the ROM, you will need to download the firmware first. Here, we are sharing the original R831 firmware for your convenience.
What can you do with A3s CPH1853 Stock Firmware?
- Unrooting A3s CPH1853 devices
- Reinstalling the current stock ROM
- Fixing boot loop issue such as rebooting continually or hanging on the Oppo logo issue
- Fixing software issue
- Unbricking A3s CPH1853 model
- Upgrading or downgrading present stock firmware
- Fixing dead Oppo device
- Changing the IMEI issue
- Removing malware or virus
Download A3s CPH1853 Stock Firmware
In this part, you can download the A3s CPH1853 flash file for your Oppo device. You can use this firmware on all Windows versions such as Windows XP, Windows 7, Windows 8, and Windows 10. Also, this firmware will work on both 32-bit and 64-bit systems. To get the latest firmware, click on the link below, and the firmware file will be downloaded on your PC.
| Brand | Oppo |
| File Name | Oppo_A3s_CPH1853 11_S.02_180918.zip |
| Phone Model | A3s CPH1853 |
| File Size | 4 GB |
| Last Updated | 13 December 2021 |
| Brand | Oppo |
| File Name | Oppo_A3s_CPH1853 11_A.15_180922_QFIL.zip |
| Phone Model | A3s CPH1853 |
| File Size | 4 GB |
| Last Updated | 13 December 2021 |
| Brand | Oppo |
| File Name | Oppo_A3s_CPH1853 11_A.16_181022.zip |
| Phone Model | A3s CPH1853 |
| File Size | 4 GB |
| Last Updated | 13 December 2021 |
How to Flash A3s CPH1853 Firmware
To flash or install the A3s CPH1853 flash file, follow the steps below.
Step 1: Download the latest version of the A3s CPH1853 stock firmware file on your Windows PC by clicking on the above link.
Step 2: Extract the content of the firmware.
Step 3: After extracting the zip file, you will see the latest firmware file for A3s CPH1853.
Step 4: Install the official Oppo USB Driver on the Computer (if in case the USB Driver is already installed, then SKIP this step).
Step 5: Then, download and install the Oppo flash tool and follow the onscreen guideline for the flashing A3s CPH1853 model.
Also read: Oppo A3 CPH1837 Stock Firmware
Note to Remember
- You have to download and install the flash tool to complete the process.
- You need to take a full backup of your A3s CPH1853 Smartphone before reinstalling the new firmware.
- You need to download the pre-required drivers for the A3s CPH1853 model.
- To flash the A3s CPH1853 Device, you need a Windows desktop or laptop.
- Your phone battery must be fully charged or at least 50% to 80% charged.
Developer Credit: “Oppo” is the sole developer and owner of the A3s CPH1853 flash file we provide in this post. As freeware, we are publishing on our website. All credit goes to the original and official developer team. Thanks for being with us.