Last updated: June 11th, 2026 at 08:01 UTC+02:00
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The new firmware addresses 45 security issues.
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Abhijeet Mishra / SamMobile
Samsung Galaxy S25 Ultra - Source: Abhijeet Mishra / SamMobile
Usually, when Samsung releases an update to a Galaxy S series, the brand offers it first to the core models (base, Plus, Ultra, and Edge), and then to the Fan Edition version. However, with the June 2026 security patch for the Galaxy S25 lineup, the company released it to the Galaxy S25 FE first yesterday. Fortunately, it didn't take long for the tech giant to extend the update to the Galaxy S25, Galaxy S25+, Galaxy S25 Ultra, and Galaxy S25 Edge.
As is the case with most updates, Samsung is rolling out the June 2026 security patch for the Galaxy S25 lineup first in South Korea, its home country. It is 898.24MB, which is unusually large for a security update, and carries firmware version S93xNKSUACZF1 (via Tarun Vats). The brand should release it in other countries over the next few days. To get its availability and get it, go to Settings > Software update > Download and install.
The June 2026 security patch addresses 45 security issues present in the previous version of the OS, making the four phones more secure than before. It is worth pointing out that this is the second software update for these devices after Samsung released One UI 8.5 for them, which brought visual changes and new features.
Samsung has also unveiled One UI 9.0 and opened its beta program for the Galaxy S26. The brand may most likely extend the new software's beta program for the Galaxy S25 lineup. For those of you who don't want to suffer from the issues that the beta firmware usually has, you may have to wait for a couple of months to get it.
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.