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 Download Samsung Galaxy A40 SM-A405FN - COS - A405FNXXU3BTC4

Download the firmware flash for Samsung Galaxy A40 with the code is SM-A405FN. This firmware for the region with CSC code is COS (COS - Greece). Please make sure the code is correct. You can check model code in Setting - About, in Download mode or you can find it by flipping your phone or among the things you found in the box. This product PDA version is A405FNXXU3BTC4 and Android version is Q(Android 10). This firmware size is 3.61 GB.

This firmware is official from Samsung Cloud Server. Of course, we recommend you are using official Samsung tool like Samsung Smart Switch or Samsung Kies. Samfw.com will not responsible for any damage caused by using the files on this website

  • AP VERSION A405FNXXU3BTC4
  • CSC VERSION A405FNODX3BTB7
  • ANDROID VERSION Q(Android 10)
  • BIT (BINARY/U/SW REV.) 3
  • SIZE 3.61 GB  Full Files
  • MD5 db9f3f9a6b8fad5e99b220a8eb5ef04e
One UI 2 upgrade with Android 10

One UI 2 brings you Android 10, with exciting new features from Samsung and Google based on feedback from users like you.
We recommend that you back up your important data to keep it safe during the upgrade.
Some apps, including Calculator, Samsung Internet, Samsung Health and Samsung Notes, need to be updated individually after you update your OS.

Here's what's new.

Dark mode
- Enhanced image, text, and color adjustments for day and night environments.
- Darkened wallpapers, widgets, and alarms while Dark mode is on.

Icons and colors
- Clearer app icons and system colors.
- Improved layouts for titles and buttons to eliminate wasted screen space.

Full screen gestures
- Added new navigation gestures.

One-handed mode
- Settings moved to Settings > Advanced features > One-handed mode.

Device care
- The battery usage graph now provides more detailed information.

Digital wellbeing
- Set goals to keep your phone usage in check.
- Use Focus mode to help avoid distractions from your phone.
- Keep an eye on your kids with new parental controls.

Samsung Contacts
- Added Trash feature for Contacts. Contacts that you delete will stay in the trash for 15 days before being deleted forever.
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Lastest combinations Galaxy A40 SM-A405FN
Device Version Bit/SW REV. FA Change list
SM-A405FN / Galaxy A40 A405FNXXU3ATD1 3 FA90 CL15734739
SM-A405FN / Galaxy A40 A405FNXXU3ATB1 3 FA90 CL15734739
SM-A405FN / Galaxy A40 A405FNXXU3ATA1 3 FA90 CL15734739
SM-A405FN / Galaxy A40 A405FNXXU2ASG1 2 FA90 CL15734739
SM-A405FN / Galaxy A40 A405FNXXU2ASF2 2 FA90 CL15734739
All combinations
 Recent posts
 How to flash Samsung Galaxy A40 SM-A405FN firmware

1. Extract (unzip) the Samsung firmware file. Recommended using WinRAR or 7-Zip

2. Download Odin Tool 3.13.1

3. Extract Odin ZIP file

4. Open Odin execute file

5. Reboot Samsung phone in Download Mode (hold Home + Power + Volume Down buttons / hold Volume Down + Bixby buttons then plug-in cable)

6. Connect you Samsung phone and wait until you get a blue sign in Odin

7. Add the 1 file Samsung firmware to AP/PDA or 4 files Samsung firmware (AP/BL/CP/CSC) to it's slots

8. Make sure re-partition is NOT ticked

9. Click the START button, sit back and wait few minutes

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