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Samsung Begins April Security Update for Galaxy S23 FE and S24 FE in South Korea

The patch delivers 47 security fixes with expansion to more regions expected soon.

Overview

  • Samsung has started rolling out the April 2026 security update to the Galaxy S23 FE and Galaxy S24 FE in South Korea.
  • The update adds no new features and focuses on fixing vulnerabilities to improve device safety.
  • Samsung’s April bulletin lists 47 fixes in total, including 33 from Google’s Android Security Bulletin, 10 from Samsung Mobile, and 4 from Samsung Semiconductor, with several rated high severity.
  • The firmware builds are S711NKSSEDZCH for the Galaxy S23 FE and S721NKSSBCZD2 for the Galaxy S24 FE.
  • Samsung is extending the same April patch across its lineup, with recent rollouts to Galaxy A56, A57, and A37 units in multiple regions, while both FE models remain eligible for a later One UI 8.5 upgrade without a set date.