Samsung has started rolling out the February 2024 security update to the Galaxy S21 series in Korea. The all-new security software update for the Galaxy S21, Galaxy S21+, and Galaxy S21 Ultra is rolling out with firmware version G991NKSS4FXAD/G991NOKR4FXAD/ G991NKOU4FWK6.
The new update fixes 72 security vulnerabilities found in the previous software version.
You can now download the new update by navigating to Settings > Software update > tapping Download and Install.
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