
Samsung Galaxy Z Flip5 F731NKSS5DYBE is an Android 14 firmware for South Korea (KOO, KTC, LUC, SKC). It is the same firmware configured per region and carrier (CSC). Find your country below, verify the file and download for free. Compared with the previous build F731NKSS4DYAA https://samfirm.shop/build/F731NKSS4DYAA: bootloader binary raised from 4 to 5, so after installing it there is no way back to older builds; security patch 2025-03-01 instead of 2025-02-01. A newer build for SM-F731N is available: F731NKSU6HZIJ https://samfirm.shop/build/F731NKSU6HZIJ.
Bootloader binary 5. Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.
Pick your region (CSC) to download the matching firmware package.
SMR Mar-2025 fixes 55 vulnerabilities, 11 of them critical. Android Security Bulletin: 49, Samsung-specific issues (SVE): 6.
Most severe Samsung fixes:
Samsung released this build in all regions (4) on the same day, March 6, 2025.
Specifications of SM-F731B, a regional variant of the same device. Chipset and SIM lines are left out: they can differ by region.