Is R865FXXU2JZC2/R865FOLB2JZC2/R865FXXU2JZC2 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, R865FXXU2JZC2/R865FOLB2JZC2/R865FXXU2JZC2 is the version shown. Check FirmwareMirror regularly for newer versions of Samsung Galaxy Watch4 40mm LTE (SM-R865F) firmware.

Download Samsung Galaxy Watch4 40mm LTE (SM-R865F) ROM - R865FXXU2JZC2/R865FOLB2JZC2/R865FXXU2JZC2 (KDI)

Name: R865FXXU2JZC2/R865FOLB2JZC2/R865FXXU2JZC2 for Samsung Galaxy Watch4 40mm LTE (SM-R865F)
Availability: InStock
Author: Samsung

What's New

Samsung SM-R865F firmware update — March 2026 security patch. Build: R865FXXU2JZC2. Includes the latest Android security patches and system stability improvements. Flash using Samsung Odin3.

Android Version

N/A

File Size

505.45 MB

Release Date

Mar 01, 2026

Flash Method

Odin

Download ROM

Available

Download Now

File Size: 0.49 GB

Mirror Downloads (1)

Mirror 1

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

Verification & Details

Package Name:

R865FXXU2JZC2

How to Flash Odin on Samsung Galaxy Watch4 40mm LTE (SM-R865F)

Please follow these steps carefully to install the R865FXXU2JZC2/R865FOLB2JZC2/R865FXXU2JZC2 update safely. Ensure your device has at least 60% battery.

Download the R865FXXU2JZC2/R865FOLB2JZC2/R865FXXU2JZC2 Recovery ROM (.zip file).
Transfer the file to the internal storage root directory of your Samsung Galaxy Watch4 40mm LTE (SM-R865F).
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 Watch4 40mm LTE (SM-R865F)

Download Samsung Galaxy Watch4 40mm LTE (SM-R865F) Firmware (R865FXXU2JZC2/R865FOLB2JZC2/R865FXXU2JZC2)