Samsung Galaxy Z Flip5 (SM-F731B) Firmware Overview
What is the latest SM-F731B firmware?
F731BXXU7HZIJ, released September 29, 2026 for region ZTM with Android 17. It is a feature update on bootloader binary 7. The archive holds 5 official builds for this region.
Is the Samsung Galaxy Z Flip5 still getting updates?
Yes. The newest build is from September 2026.
Which Android versions did it get?
The SM-F731B builds in the archive run Android 16 to 17. The earliest build we have for each version:
- Android 17: F731BXXU7HZIJ (Sep 2026), 1 build in total
- Android 16: F731BXXS6FZB6 (Mar 2026), 4 builds in total
Can I downgrade the SM-F731B firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 6 to 7:
- Binary 7 — since May 2026
- Binary 6 — since Feb 2026
A phone already on binary 7 rejects builds with a lower binary in Odin ("SW REV CHECK FAIL"), so it can go back to an earlier Android version only if that version has a binary 7 build. How to read a build number.
SM-F731B firmware for region ZTM
| Build / PDA | Bit | Region (CSC) | Android | Date | Download Link |
|---|---|---|---|---|---|
|
F731BXXU7HZIJ
Feature update
|
7 | ZTM | 17 |
2026-09-29 | Download |
|
F731BXXS7GZG1
Security update
|
7 | ZTM | 16 |
2026-07-08 | Download |
|
F731BXXS7GZF1
Security update
|
7 | ZTM | 16 |
2026-06-10 | Download |
|
F731BXXS7GZE5
Security update
|
7 | ZTM | 16 |
2026-05-21 | Download |
|
F731BXXS6FZB6
Security update
|
6 | ZTM | 16 |
2026-03-04 | Download |
How to Flash SM-F731B Firmware
Put the Samsung Galaxy Z Flip5 into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Pick a build with Bit 7 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.