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[Flash File] Oppo A3s Firmware Download [Stock Rom]

Oppo A3s

[Flash File] Oppo A3s Firmware Download [Stock Rom]

Here, you can download Oppo A3s Firmware and also learn how to flash it.

This is an official Oppo A3s stock rom,

Blogthetech provides all Oppo A3s Flash File.

Oppo A3s Firmware Information

ROM Name Oppo A3s Stock Firmware Rom
Based On  ColorOS
Rom OS Version Android 8.1 Oreo
ROM Type Odexed
Socs Qualcomm
Software needed Qualcomm Flash Image Loader
Compress Zip format
Drivers Qualcomm USB Drivers

How to Flash Oppo A3s stock firmware

Oppo A3s is a Qualcomm Snapdragon phone which means you will need a Qualcomm Flash Image Loader to flash Oppo A3s stock rom.


The need for Oppo A3s Firmware


It’s always advisable to backup Oppo A3s after purchasing it. You are definitely going to need your Oppo A3s stock rom someday. You are going to need it for the following reasons.


Downgrade or Upgrade Oppo A3s.


You can use Oppo A3s Stock rom to downgrade your smartphone or upgrade Oppo A3s to Android KitKat, Lollipop, Marshmallow, Nougat, Oreo, Pie or later. It depends on the release of the firmware or your choice if the option is available.


Unbrick Oppo A3s.


Oppo A3s flash file can also be used to unbrick any Oppo A3s.  Smartphones can be bricked in the process of rooting or flashing a custom firmware or rom or recovery.


Unroot Oppo A3s.


You can also use Oppo A3s rom file to completely unroot any Oppo A3s smartphone. You also can regain your warranty by properly flashing the official Oppo A3s flash file. It can be done by reverting back to the official stock firmware of Oppo A3s if your smartphone has tampered.


Fix Issues on Oppo A3s.


Your Oppo A3s might develop issue which might be unknown to it you, if it a software related issue, you can restore and fix it by flashing the stock firmware for Oppo A3s. Today, we are presenting all the Official Firmware, both Official releases and updates following it. You can download all of Oppo A3s flash file here. If you experience any problem with any of the files, don’t hesitate to tell us.

Requirements to flash Oppo A3s

How to install ROM on Android using MSMDownload Tool

Note that flashing a Oppo A3s firmware to your phone erases everything in your phone including contents in internal storage. It is always very advisable to backup your contents to an external storage or a PC. If your phone is bricked and can’t be accessed, I guess there is nothing you can do.

Follow this procedure below if you wish to flash Oppo A3s.


Flash Oppo A3s Firmware using Qualcomm Flash Image Loader.


  • Download and extract Qualcomm Flash Image Loader to your favorite folder.
  • Download Qualcomm USB Driver and install properly. Go to device manager and make sure you see Qualcomm QDLoaderXXXXXX
  • Extract Oppo A3s files.
    Qualcomm-Flash-Image-Loader-Files
    Qualcomm-Flash-Image-Loader-Files
  • Now Open QFIL.exe.
  • Qualcomm Flash Image Loader QFIL Interface
    Qualcomm Flash Image Loader QFIL Interface
  • Click on Browse to locate the extracted Oppo A3s files.
    Locate File on Qualcomm load Image
    Locate File on Qualcomm load Image
  • Click on Load XML and select rawprogram_unsparse_without_qcn.xml or select the one compatible to your smartphone
    Load XML in Qualcomm Flash Image Loader QFIL
    Load XML in Qualcomm Flash Image Loader QFIL
  • Click on Select Port and select the driver you saw when you installed Qualcomm USB driver.
    Select Port on QFIL Tool
    Select Port on QFIL Tool
  • You will need to power off your device and connect it to the PC while off.
  • Once the Oppo A3s file is ready, click on Download.
    Qualcomm Flash Image Loader (QFIL)
    Click Download Qualcomm Flash Image Loader (QFIL)
  • Once you click on download, the flashing process will begin and might take up to 10 minutes to flash your phone.
  • Relax and take a cup of coffee maybe, your phone will auto reboot after the flashing.
  • Setup your phone and enjoy.

If you face any difficulty flashing Oppo A3s, please check whether you followed all the instructions and installed all the drivers properly..

If you don’t install all the necessary drivers, you may experience issues detecting your phone with the PC.

Is your smartphone is running Qualcomm, MediaTek or any other chipset?, you should use the procedure below.

How to Know and Flash Any type of SmartphoneNo matter the chipset GET OTHER STOCK FIRMWARE and ROMs FROM HERE Download Oppo A3s Firmware CPH1803EX_11_A.02_180705_88dff542 Download Oppo A3s Firmware Oppo_A3s_CPH1853_11_A.16_181022

John Daniel

Love the future Tech and a big fan of Android Mobile Development. In his early 20s and an undergraduate of Electrical Electronics Engineering.

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