Update Galaxy M20 to Android 8.1.0 Oreo firmware

August 16, 2023

Update Galaxy M20 to official Android 8.1.0 Oreo firmware. This is the first time Samsung has launched new phones with the most current January 2019 security patch. We will soon see Android Pie update as well as Android Q update for Galaxy M10 and M20 smartphones.

As per the reviews from Samsung, it seems that this mid-range smartphone is undoubtedly the best mobile phone of 2019. Galaxy M20 launch date in India was January 28th, 2019. But it became available online from February 5 onward.

Samsung Galaxy M20 Android 8.0 Stock Firmware
Samsung Galaxy M20 Android 8.1.0 Oreo Update

You can see various unboxing videos on YouTube. Its accessories include travel adapter charger 9V 1.67 Amp, USB Type C cable, SIM card eject tool, warranty card, and manual guide. There are only a few differences between Galaxy M10 vs M20. It is quite obvious that M20 specs are slightly better than Galaxy M10. Galaxy M20 price in India starts from Rs. 12,990.

But you won’t believe the sale will start from February 5th, so you can buy from Amazon online website. Samsung Galaxy M20 competitors & rivals include Xiaomi, Oppo F11 Pro, Huawei Y6 2019, Motorola Moto G7 Play, Huawei nova Lite 3, Huawei Y7 Prime 2019, Asus Zenfone Max Pro M2, Ulefone Armor X, Infinix Note 4 and Panasonic Eluga Ray 700.

Related: Install Android 10 Stock ROM on Samsung Galaxy M20

Note that this is an Indian (INS) OTA update official from Samsung. And it is not any third party custom firmware. Hence your phone warranty will not get void after flashing this Stock ROM. There are various device stability improvements, enhancements, and bug fixes. This update is based on Android version 8.1.0 Oreo with build number M205FDDU1ASAF.

Go ahead to download the software update using the easy steps guide mentioned below. Here we give direct Samsung firmware Google Drive links for fast download. If you want to root Android phones without PC, then stay tuned as we will soon post a tutorial on that. Today, we will manually install the latest official Android 8.1.0 Oreo-based Stock ROM on M20 using Odin software.

Galaxy M20 Specification

Let’s check out some of the specs now. This M series smartphone include 6.3 inches screen with 1080 x 2340 pixels of resolution. The most amazing thing is that it features a dual-camera setup which includes a 13-megapixel primary lens and a 5-megapixel wide-angle lens.

Its battery has a massive 5,000mAh power with fast charging support. Talking about the processor, it comes with an octa-core processor with 4 GB RAM and 64 GB internal memory. It also comes with Android 8.1 Oreo out of the box. For full phone specifications, search galaxy M20 gsmarena on Google.

How to Install Samsung Galaxy M20 Android 8.1.0 Update M205FDDU1ASAF

Do you want to unroot or unbrick your Samsung phone? Do you want to restore the default factory settings of your Android device? If yes, then you should flash Samsung stock firmware. Interested users may proceed to our easy step-by-step tutorial to update Android 8.1.0 SM-M205F M205FDDU1ASAF firmware.

Firmware Details

Model Name: Samsung Galaxy M20
Model Number: SM-M205F
OS Version: Android 8.1.0 Oreo
Build Date: 30 January, 2019
Region: India (INS)
PDA Version: M205FDDU1ASAF
CSC Version: M205FODM1ASA9


Proceed at your own risk. If your phone gets damaged by following this guide, then we at Droid Thunder will not be held responsible for that. Moreover, the firmware used is the property of their respective owners.


This Android 8.1.0 Oreo M205FDDU1ASAF software update is only for Samsung Galaxy M20 with model number SM-M205F. Do not install this firmware on any other device or variant.


  • To avoid any interruption, it is recommended to charge your phone at least 60%.
  • Backup your contacts, apps, messages, call logs, notes, etc.
  • Install the latest Samsung USB drivers on PC to detect your phone when connected using a USB cable.
  • (Optional) Temporary disable all the security tools as well as antivirus on your computer.



Odin Tool

Samsung Firmware Installation Guide

Now that you’ve downloaded the latest update, it is time to install it on your phone. Follow our guide given below to flash the Android 8.1.0 update.


Finally! The latest official Android 8.1.0 Oreo DDU1ASAF firmware is successfully installed on your Samsung Galaxy M20 SM-M205F. To confirm the same, go to Menu > Settings > About Phone. For any queries related to this article, kindly comment below.

Leave a Comment

2 thoughts on “Update Galaxy M20 to Android 8.1.0 Oreo firmware

  1. i recently buy a m20, earlier the phone turn off while send a sms, took a few minutes to start, and restart over and over… if i flash the phone can fix this problem?

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