Download the official Oppo A3s firmware (Stock ROM) to fix software issues and unbrick your device. This package contains the Flash Tool, USB Driver, and visual instructions. File Size: 4 GB.
Download Oppo A3s Stock Firmware
📂 Oppo A3s Firmware Specifications
| File Name | Oppo_A3s_CPH1853_11_S.02_180918(Flash-Files.Net).zip |
| Device Model | Oppo A3s |
| File Size | 4 GB |
| Download |
📂 ROM Details
| File Name | Oppo_A3s_CPH1853_11_A.15_180922_QFIL(Flash-Files.Net).zip |
| File Size | 4 GB |
| Mirrors |
📂 Firmware Specifications
| File Name | Oppo_A3s_CPH1853_11_A.16_181022(Flash-Files.Net).zip |
| Size | 4 GB |
| Mirrors |
📂 Firmware Specifications
| File Name | Oppo_A3S_CPH1853_11_A.17_181107(Flash-Files.Net).zip |
| File Size | 4 GB |
| Mirrors |
📂 ROM Details
| Package Name | Oppo_A3S_CPH1853_11_A.18_181119(Flash-Files.Net).zip |
| File Size | 4 GB |
| Download |
📂 ROM Details
| File Name | Oppo_A3S_CPH1853_11_A.19_181212(Flash-Files.Net).zip |
| Size | 5 GB |
| Mirrors |
📂 Firmware Specifications
| File Name | Oppo_A3S_CPH1853_EX_11_A.20_190105(Flash-Files.Net).zip |
| Size | 5 GB |
| Mirrors |
📂 ROM Details
| Package Name | Oppo_A3S_CPH1853_11_A.21_190315(Flash-Files.Net).zip |
| Size | 5 GB |
| Download |
📂 Firmware Specifications
| Package Name | Oppo_A3S_CPH1853_EX_11_A.39_OTA(Flash-Files.Net).zip |
| Size | 2.01 GB |
| Download |
🛠️ Essential Tools
Installation Guide: Oppo A3s
Use this guide to flash the firmware on your Oppo A3s correctly. Make sure your battery is charged.
Step 1: Prepare
Get the firmware and extract 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 detects the Oppo A3s.
Phase 3: Installation
Open the Flash Tool, load the firmware file, and connect your device in download mode. Click "Start" to begin flashing.
Frequently Asked Questions
Is this Oppo A3s firmware official?
Yes, the firmware provided here is 100% official from the manufacturer for Oppo A3s.
Does flashing Oppo A3s delete data?
Yes, flashing Oppo A3s stock firmware typically wipes user data. Please backup your data before proceeding.
What is the Oppo A3s file size?
The Oppo A3s 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, please comment down below.
