Samsung updates Galaxy A54 with October 2026 security update

TL;DR

Samsung has begun rolling out the October 2026 security update to the Galaxy A54 before other Galaxy A models.

The update is first appearing on the international Galaxy A54 in Thailand, with firmware A546EXXSNFZJ3.

It fixes 62 security issues, and Samsung says more regions and variants should follow soon.

Samsung started rolling out the October 2026 security patch to Galaxy smartphones even before the month began. As expected, the Galaxy S26 series, one of the company’s newest and most premium smartphone lineups, was the first to receive it.

Now, the brand has started rolling out the latest security patch to Galaxy A series smartphones. However, the newest and most premium model in the lineup, the Galaxy A57, isn’t the first to get it. Instead, the update has arrived on the Galaxy A54.

The Galaxy A54 units in Thailand, where Samsung sells the phone’s international variant, seem to be one of the first to get it. The update carries firmware version A546EXXSNFZJ3. It fixes 62 security issues.

The brand should release it for other variants of the phone and in other countries over the next few days. You can check its availability and get it by going to Settings > Software update > Check for updates.

On a related note, you should also know that Samsung has opened the One UI 9.0 (Android 17) beta program for the Galaxy A54. Unfortunately, there's no information currently on when the stable update would arrive.

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 Galaxy A54 October 2026 Security Patch Thailand