Galaxy S21 December 2024 security update gets wider rollout

Yesterday, Samsung released a software update to the carrier-locked variants of the Galaxy S21, Galaxy S21+, and Galaxy S21 Ultra, for the United States. It offered the December 2024 security patch that fixes several security issues present in the previous software.

Galaxy S21 December 2024 update available more widely

Now, the South Korean tech giant is rolling out the same software update to factory-unlocked models of the three smartphones as well as to their international versions.

The story continues after the video…

The new software update for the factory-unlocked versions of the Galaxy S21, Galaxy S21+, and Galaxy S21 Ultra has firmware version G99xU1UESEGXL1. For the international versions of these smartphones, the firmware version is G99xBXXSEGXK1.

The December update only comes with the latest security fixes for vulnerabilities discovered in Android and Samsung's One UI. Fixes for vulnerabilities affecting some Exynos chips, including the Exynos 2100 powering the Galaxy S21 series, are included as well.

If your Galaxy S21 hasn’t notified you about the new update yet, you can check for it manually by heading into the phone's Settings » Software update » Download and install menu. You can also download Galaxy S21, S21+, and S21 Ultra firmware from SamMobile’s firmware section.

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Abid Iqbal Shaik - Writer

First Samsung device: Galaxy S II

I’m a computer science engineer living in Hyderabad, India, who has a keen interest in automobiles and consumer electronics. My journalism career kicked off in 2017 with MySmartPrice where I wrote news, features, buying guides, and explanatory articles about technology among other things, and reviewed many products, including smartphones, tablets, laptops, PC components, smartwatches, audio devices, wearables, and smart home products. Since then, I have worked for 91Mobiles, Apple, and Onsitego, before finally landing on SamMobile.

Firmware Phone December 2024 Security Patch Europe Galaxy S21 Galaxy S21 Plus Galaxy S21 Ultra USA

Galaxy S21’s December 2024 security update rolls out to more variants

Galaxy S21 December 2024 update available more widely

Abid Iqbal Shaik - Writer

First Samsung device: Galaxy S II