March update available for Galaxy S21, A54 & A53 in the US

Samsung Galaxy S21 Ultra AH 03

Another day, another batch of Samsung devices to get the March 2024 update in the US. The company has released the new security patch for the Galaxy S21 series, Galaxy A54, and Galaxy A53. It has already pushed the update to newer flagships and foldables.

Galaxy S21 series grabs Samsung’s March 2024 update in the US

The March update for the Galaxy S21 series currently appears to be exclusive to carrier-locked units on Verizon’s network. The new SMR (Security Maintenance Release) comes with the firmware build number G991USQSAFXBC and only brings the latest security fixes. “The current software update provides the most up-to-date Android security patches on your device,” the official release notes read.

Samsung will soon roll out the new SMR to carrier-locked and unlocked variants of the Galaxy S21, Galaxy S21+, and Galaxy S21 Ultra on other networks. The changelog will remain the same. These phones aren’t getting new features this month. One UI 6.1 is on the way for them but may not arrive before April or May. It brings new AI features, camera improvements, editing tools, and more.

This month’s SMR, meanwhile, patches 46 security vulnerabilities in the devices. The figure counts all Android OS and Galaxy vulnerabilities across the Samsung ecosystem, not just the Galaxy S21 trio. At least two of these are critical issues in Android OS, patched by Google. These flaws can lead to remote code execution and open up a way for a devastating attack if someone exploits them.

The same security fixes are also rolling out to the carrier-locked variants of the Galaxy A54 and Galaxy A53 in the US. These are Samsung’s premium mid-range offerings for 2023 and 2022, respectively. The devices are getting this update with build numbers A546USQS6BXB9 and A536USQS9DXC4, respectively. A wider rollout covering unlocked units and global versions should follow soon.

Galaxy A54 and Galaxy A53 will also get the One UI 6.1 update

Samsung’s One UI 6.1, introduced with the Galaxy S24 series, will also make it into the Galaxy A54 and Galaxy A53. These devices may miss out on the AI features due to hardware limitations but should pick up a few new software tricks and improvements. It may take a while before the update arrives, though. Samsung has yet to begin the rollout. The Galaxy S23 series will get it first, followed by other models. You can always check for new updates from the Settings app on your Galaxy device.

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