Is F721NKSS6HYFD/F721NOKT6HYFD/F721NKSU6HYD2 stable for daily use?

This is an official firmware release. All official releases from FirmwareMirror are stable and tested. Always backup your data before flashing any firmware.

Is this firmware the latest version?

Yes, F721NKSS6HYFD/F721NOKT6HYFD/F721NKSU6HYD2 is the version shown. Check FirmwareMirror regularly for newer versions of Samsung Galaxy Z Flip4 (Korea) firmware.

Download Samsung Galaxy Z Flip4 (Korea) ROM - F721NKSS6HYFD/F721NOKT6HYFD/F721NKSU6HYD2 (KOO)

Name: F721NKSS6HYFD/F721NOKT6HYFD/F721NKSU6HYD2 for Samsung Galaxy Z Flip4 (Korea)
Availability: InStock
Author: Samsung

What's New

Samsung SM-F721N firmware update — June 2025 security patch. Build: F721NKSS6HYFD. Includes the latest Android security patches and system stability improvements. Flash using Samsung Odin3.

Android Version

N/A

File Size

367.08 MB

Release Date

Jun 01, 2025

Flash Method

Odin

Download ROM

Available

Download Now

File Size: 0.36 GB

Mirror Downloads (1)

Mirror 1

1 mirror(s) available • Click any button to download

Verification & Details

Package Name:

F721NKSS6HYFD

How to Flash Odin on Samsung Galaxy Z Flip4 (Korea)

Please follow these steps carefully to install the F721NKSS6HYFD/F721NOKT6HYFD/F721NKSU6HYD2 update safely. Ensure your device has at least 60% battery.

Download the F721NKSS6HYFD/F721NOKT6HYFD/F721NKSU6HYD2 Recovery ROM (.zip file).
Transfer the file to the internal storage root directory of your Samsung Galaxy Z Flip4 (Korea).
Navigate to Settings > About Phone > System Update.
Tap the OS logo 10 times to enable advanced features.
Tap the top-right menu icon and select 'Choose update package'.
Select the downloaded zip file and wait for the automated installation to complete.

Back to Samsung Galaxy Z Flip4 (Korea)

Download Samsung Galaxy Z Flip4 (Korea) Firmware (F721NKSS6HYFD/F721NOKT6HYFD/F721NKSU6HYD2)