Download Oppo A3s CPH1803 Stock Firmware (Official Flash File)

✅ Verified Official ROM 🔒 Scanned for Malware 📥 Direct Download 🆓 100% Free

Download the official Oppo A3s CPH1803 firmware (Stock ROM) to fix bootloop and unbrick your device. This file contains the Flash Tool, USB Driver, and visual instructions. File Size: 4 GB.

Get Oppo A3s CPH1803 Stock Firmware

📂 Oppo A3s CPH1803 ROM Details

📄 File Name	Oppo_A3S_CPH1803_EX_11_A.12_180927(Flash-Files.Net).zip
📱 Device Model	Oppo A3s CPH1803
📦 Size	4 GB
📥 Download	📥 Server 1 4 GB 🚀 Server 2 Fast

📂 ROM Details

📄 File Name	Oppo_A3S_CPH1803_EX_11_A.13_181103(Flash-Files.Net).zip
📦 Size	4 GB
📥 Download	📥 Server 1 4 GB

📂 ROM Details

📄 Package Name	Oppo_A3S_CPH1803_EX_11_A.15_190123(Flash-Files.Net).zip
📦 Size	5 GB
📥 Download	📥 Server 1 5 GB

📂 ROM Details

📄 File Name	Oppo_A3S_CPH1803_EX_11_A.17_190323(Flash-Files.Net).zip
📦 Size	5 GB
📥 Mirrors	📥 Server 1 5 GB

📂 Firmware Specifications

📄 File Name	Oppo_A3S_CPH1803_EX_11_A.18_190529(Flash-Files.Net).zip
📦 File Size	4 GB
📥 Download	📥 Server 1 4 GB

📂 ROM Details

📄 File Name	Oppo_A3S_CPH1803_EX_11_A.19_190717(Flash-Files.Net).zip
📦 Size	4 GB
📥 Mirrors	📥 Server 1 4 GB

📂 ROM Details

📄 File Name	Oppo_A3S_CPH1803_EX_11_A.20_190923_RFT(Flash-Files.Net).zip
🔧 Flash Method	Guide How to Flash Firmware
📦 Size	3.91 GB
⚡ Flash Tool	Realme Flash Tool for Windows OS
📥 Mirrors	📥 Server 1 3.91 GB

📂 Firmware Specifications

📄 File Name	Oppo_A3S_CPH1803_EX_11_A.25_200320(Flash-Files.Net).zip
📦 File Size	4 GB
📥 Mirrors	📥 Server 1 4 GB

📂 Firmware Specifications

📄 Package Name	Oppo_A3S_CPH1803_EX_11_A.29_200710_RFT(Flash-Files.Net).zip
🔧 Flash Method	Guide How to Flash Firmware
📦 Size	3.92 GB
⚡ Tool	Realme Flash Tool for Windows OS
📥 Mirrors	📥 Server 1 3.92 GB

📂 ROM Details

📄 Package Name	Oppo_A3S_CPH1803_EX_11_A.34_210122_RFT(Flash-Files.Net).zip
🔧 Install Method	Guide How to Flash Firmware
📦 Size	4 GB
⚡ Tool	Realme Flash Tool for Windows OS
📥 Download	📥 Server 1 4 GB

🛠️ Essential Tools

⚡ Flash Tool Required for flashing 🔌 USB Driver Connect device to PC

📖 Installation Guide: Check our step-by-step tutorial for detailed instructions.

Installation Guide: Oppo A3s CPH1803

Follow these steps to install the firmware on your Oppo A3s CPH1803 correctly. Make sure your battery is charged.

Phase 1: Setup

Download the firmware and unzip it on your PC. Check that you have the Flash Tool and USB Drivers inside the folder.

Phase 2: Drivers

Setup the provided USB Drivers so your computer recognizes the Oppo A3s CPH1803.

Phase 3: Installation

Open the Flash Tool, load the firmware file, and connect your device as instructed. Click "Start" to commence flashing.

Frequently Asked Questions

Is this Oppo A3s CPH1803 firmware official?
Yes, the firmware provided here is 100% official from the manufacturer for Oppo A3s CPH1803.

Does flashing Oppo A3s CPH1803 delete data?
Yes, flashing Oppo A3s CPH1803 stock firmware typically wipes user data. Please backup your data before proceeding.

What is the Oppo A3s CPH1803 file size?
The Oppo A3s CPH1803 firmware file size is 4 GB. Make sure you have enough storage space.

Are the download links safe?
Yes, all download links provided are 100% safe and scanned for malware. We provide direct links to official firmware files.

⚠️ Disclaimer: The Oppo A3s CPH1803 firmware shared on this page is officially released. Installing is done at user's risk. We are not responsible for bricked devices.

If you encounter any problem flashing Oppo A3s CPH1803, please comment below.