Samsung Galaxy A40 Stock Firmware (Firmware Flashing)

If you’re a Samsung Galaxy A40 user who has installed a custom ROM and for some reason, you want to revert back to Galaxy A40 stock firmware, then you’re at the right place. Going back to the stock ROM is easier than you think.

There are loads of benefits of having the stock ROM of an Android device. You can Fix Bootloop and Black screen issue by flashing back the stock firmware. If you are facing some software related issues, then you can flash the stock ROM to fix that. You can Unbrick and unroot your device by flashing back the stock firmware which will give you your device’s warranty back.

Here we will be sharing the Full collection of Samsung Galaxy A40 Stock ROM (firmware). We are also sharing a step by step guide to install the firmware.

Download Samsung Galaxy A40 SM-A405FN Stock Firmware Flash File

Here are the download links to revert back to Galaxy A40 stock firmware –

United Kingdom

  • File Name:
  • Android Version: 9.0 | Download

United Kingdom

  • File Name:
  • Android Version: 11.0 | Download

About Galaxy A40

Samsung Galaxy A40 comes equipped with a 5.9  inches OLED capacitive touchscreen with 1080 x 2340-pixel resolutions. The device is powered by an octa-core Exynos 7885 chipset coupled with 4 GB of RAM. The internal memory is 64 GB which may be expandable. It runs the latest Android 9.0 Pie with Samsung OneUI out of the box,

The Samsung Galaxy A40 sports a dual rear cameras (16 MP and 5 MP). There is a 25 MP front-facing camera as well. The Galaxy A40 houses a non-removable 3100 mAh battery.

About ROMs In Android Ecosystem

Android is an open source platform so it allows users to replace the stock ROM or re-installed the operating system with any compatible third-party ROMs. In computer language, the ROM stands for READ ONLY MEMORY that means you can not edit or delete the ROM. However, when it comes to Android there is a different meaning for the ROM. In Android, it means firmware of the device. Installing ROM on the Android device is as same as installing an operating system on a computer device.

In the Android Ecosystem, there are two types of ROMs or Firmware exists. One is Stock Firmware which is provided by the manufacturer and comes pre-installed with the device and the second one is Custom ROM which is developed by third-party developers or team. Most of the cases, Stock Firmware is more stable compared to the Custom ROMs whereas Custom ROMs provides more features and updates compared to the Stock ROM

stock firmware benefits 2

Disclaimer: is not responsible for any damage happened to your device(s) while following this guide so please proceed at your own risk. However, we would be happy to help about any problems within our reach


Steps To Install Samsung Galaxy A40 Stock Firmware (Back to stock, Unbrick, Unroot and Fix Bootloop)

Galaxy A40 stock firmware

  1. Download Stock Firmware (OTA) for Galaxy S6 from the download section above
  2. Download and install the latest ODIN tool from the above download section.
  3. Now Follow our in-depth guides on how to download and install official Samsung firmware files via Odin!

Good going! If you have followed all the instructions properly, then you will have no issues reverting back to Galaxy A40 stock firmware! If you still have any queries, feel free to refer us to the comments section!

Dibyashree Sharma
Dibyashree Sharma
Editorial Leader
Dibyashree Sharma graduated in Computer Science from NIT Rourkela. For the past eight years, she has been blogging about Android, which she is really passionate about. She has built a good reputation as a reliable source. Away from the digital sphere, Dibyashree enjoys playing tennis, a sport she is as passionate about as she is about technology.

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