Oppo A3s CPH1853 Firmware Flash File (Stock ROM Guide)

Want to flash the Stock ROM file on Oppo A3s CPH1853? Then you are in the right place. On this page, we will share the official Oppo A3s CPH1853 flash files...

Abd Razaaq

Last updated on March 9, 2021

Abd Razaaq

Author

I'm a Tech Content Writer and Full-Time blogger. Since I love Android and Google's device, I started my career in writing for Android OS and their features. This led me to start "GetDroidTips". I have completed Master of Business Administration at Mangalore University, Karnataka.

Want to flash the Stock ROM file on Oppo A3s CPH1853? Then you are in the right place. On this page, we will share the official Oppo A3s CPH1853 flash files with their firmware installation guide.

To install the firmware flash file, we need a software to flash tool which can be helpful to flash the stock ROM on your device. The method is simple and easy. We have also added video and step by step tutorial to make things easier to flash the official flash file.

Well, you might have ended up in situations such as hard brick, want to fix Bluetooth and WiFi issues, unroot your device, downgrade or fix the lag or freezing display. Whatever the case might be, one of the best solutions to fix your Oppo A3s CPH1853 is by installing or flashing Stock ROM back on it. You can consider flashing Stock ROM like doing a Factory Data Reset on your Oppo A3s CPH1853 running on stock ROM.

Oppo A3S

Why We Need Firmware Files?

Stock Firmware or a Stock ROM is official software that is designed by the OEM manufacturer for a particular device. This file is required to fix any software-related issue on your Oppo A3s CPH1853. If you are facing any problem with your device, your final attempt will be to re-install the stock ROM. This way, you can restore your device back to stock ROM. This guide will be more useful to those users who always want to try rooting, installing mods, or custom ROM.

Advantages of Stock ROM:

Here are the answers to why you need to download and save the Oppo A3s CPH1853 Stock ROM flash file on your computer.

If your device is dead, you can unbrick using the Stock ROM file

You can fix or repair the IMEI on your device using DB files from Stock ROM

Remove any malware or Adwares from Oppo A3s CPH1853

You can fix the boot loop issue on Oppo A3s CPH1853

Fix Unfortunately, the app has stopped error on Oppo A3s CPH1853

Fix Network related issue

Patch Boot image to Root using Magisk

You can unroot Oppo A3s CPH1853

To Reset or Remove FRP on your device

Restore Oppo A3s CPH1853 back to Factory State

Flash File Details:

Device Name: Oppo A3s CPH1853
ROM Type: Stock ROM Flash Files
Gapps File: Included
Tool Supported: Various
Processor: Qualcomm Snapdragon 215
Android Version: Android 10

Prerequisites

Please note that this guide will work only with the Oppo A3s CPH1853.
You should have a Windows Laptop or PC for this guide.
Make sure that your Oppo A3s CPH1853 has at least a 60% charge left.
It is always recommended to take a backup of your Android Device.
- Backup Android Phone Without Root on any device
- If you have TWRP Recovery, Create and Restore Nandroid Backup using TWRP Recovery
Tool Supported: QFIL Flash tool or Use QCom Download Tool
Install Latest Driver: Install the Latest Oppo USB Drivers. [For All Android USB Drivers]

Once you have the above prerequisites, you can proceed to Instructions to Install Stock ROM on Oppo A3s CPH1853.

Download Flash Files:

Flash File Name: CPH1853_11_A.19_181212
File Size: 3.78 GB
Android: 8.1 Oreo
Firmware Link: Download

Disclaimer

GetDroidTips will not be responsible for bricking, hardware, or any kind of software problems arising on your while you follow this guide to install stock ROM on your phone. First, understand the tutorial and then follow it at your own risk.

Method 1: Instructions to Install via QFIL Tool:

Download Qualcomm Flash image loader tool and USB Drivers on your PC. Follow the below link to install the firmware using QFIL tool

Guide to Install Stock ROM using QFIL Tool

Method 2: Instructions to Install via QPST Tool:

Here are the instructions you need to follow in order to install Stock ROM on the Oppo A3s CPH1853 :

First of all, do all the PREREQUISITE STEPS and Now Open the Extracted QPST Folder
You will find two files with the name: Qualcomm_USB_Drivers_For_Windows.rar and QPST.WIN.2.7 Installer-00429.zip
Open the QPST Win folder and Install the QPST.exe file on your PC/Laptop
After Installation, Go to the Installed Location in the C Drive
Open the QPST Configuration
Now in the QPST Configuration, Click on Add new port -> Select the com port of your device -> and close it
Now Open the EMMC Software Downloader in the same folder located all the QPST Files
In EMMC Software Downloader, Check program boot loaders -> Browse for the device com port
Now Click Load XML Def and browse for rawprogram0.xml in folder ROM in EMMC Software Downloader (If you didn’t extract please extract the ROM and then browse the file rawprogram0.xml)
Now tap on Load Patch def and browse for patch0.xml in folder ROM
Check the search path 2 and browse for the folder ROM
Now click download, wait for the download to finish (it never finish but it also detects for a new driver, and that’s important) and it will search for the new hardware found, install the driver
That’s it! Once your installation is done! Reboot the phone! Congrats, you successfully installed Stock ROM on Oppo A3s CPH1853.

So that’s it guys, this was our take on How to Install Stock ROM on Oppo A3s CPH1853 [Firmware Flash File]. We hope that you found this post useful. Let us know what do you guys think about it in the comments section down below.