Samsung released the October 2026 security update for the Galaxy S24 FE in India on October 29. The Samsung release notes list build S721BXXSFEZJ1 for model SM-S721B, with Android 17 and the October 5 security patch.
If you have this phone, I will show you how to identify the update and check for it. Our firmware tracker first detected the India record on October 29 at 7:19 p.m. IST. That is when our tracker saw the entry, not necessarily when the download first reached a phone.
Which Galaxy S24 FE update is available in India?
The release is for the India INS firmware channel of the Galaxy S24 FE, model SM-S721B. Samsung lists its release date as October 29 and describes improved device security. The notes do not list a new feature or specify the size of the download.
Here are the details from Samsung’s release notes and our firmware record:
- Phone: Galaxy S24 FE (SM-S721B)
- Region: India (INS)
- Build: S721BXXSFEZJ1
- Android version: 17
- Security patch level: October 5, 2026
- Samsung release date: October 29, 2026
The same Samsung page lists the earlier S721BXXUEEZIF release dated October 12 with the September security patch. So if you already installed that Android 17 update, the October patch is a separate release to look for. A build offered to another model or region can have a different number.
What does the October security patch fix?
Samsung’s October 2026 bulletin describes the monthly maintenance release, including patches from Google and Samsung. The bulletin covers security issues across applicable devices; it does not say that every listed issue affected every Galaxy S24 FE.
Read our October bulletin breakdown for the wider list and what the disclosures mean.
How can you check for the update?
Open Settings, select Software update, and tap Download and install. If the update appears, review the information on your screen before starting it. Connect to Wi-Fi and keep the phone charged while it downloads and installs.
To check what is already installed, open Settings > About phone > Software information. Compare the build number and Android security patch level with the information above. The exact build is useful here because Android 17 alone won’t tell you which security release your phone has.
Don’t see it yet? First check that the model and software channel match. Samsung notes that delivery can vary by region and model. Our guide to checking a missing Galaxy update explains where to find those details and what to try next.
FAQ
Does this update bring One UI 9 to the Galaxy S24 FE?
Samsung’s India release history lists an earlier Android 17 and One UI 9 build dated October 12. The October 29 build is described as a security update, not as the first One UI 9 release for this model.
Is the October patch available for every S24 FE?
This record covers SM-S721B on India’s INS channel. Availability for a carrier or another country needs its own release information, so don’t assume the same build applies everywhere.
How can I tell whether the patch is installed?
Check Android security patch level under Settings > About phone > Software information. For this release, Samsung lists October 5, 2026. You can also compare the build number on that screen.
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