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
๐ 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 |
๐ ROM Details
| File Name | Oppo_A3S_CPH1803_EX_11_A.13_181103(Flash-Files.Net).zip |
| Size | 4 GB |
| Download |
๐ ROM Details
| Package Name | Oppo_A3S_CPH1803_EX_11_A.15_190123(Flash-Files.Net).zip |
| Size | 5 GB |
| Download |
๐ ROM Details
| File Name | Oppo_A3S_CPH1803_EX_11_A.17_190323(Flash-Files.Net).zip |
| Size | 5 GB |
| Mirrors |
๐ Firmware Specifications
| File Name | Oppo_A3S_CPH1803_EX_11_A.18_190529(Flash-Files.Net).zip |
| File Size | 4 GB |
| Download |
๐ ROM Details
| File Name | Oppo_A3S_CPH1803_EX_11_A.19_190717(Flash-Files.Net).zip |
| Size | 4 GB |
| Mirrors |
๐ 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 | |
| Mirrors |
๐ Firmware Specifications
| File Name | Oppo_A3S_CPH1803_EX_11_A.25_200320(Flash-Files.Net).zip |
| File Size | 4 GB |
| Mirrors |
๐ 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 | |
| Mirrors |
๐ 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 | |
| Download |
๐ ๏ธ Essential Tools
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.
If you encounter any problem flashing Oppo A3s CPH1803, please comment below.