Update, November 4, 2026: One UI 9 has now reached Verizon, so I’ve added its builds along with South Korea, the US carriers, Canada, Taiwan and Hong Kong. The Galaxy Z Fold 5 and Z Flip 5 builds are in their own section further down.
The Galaxy S23, S23+ and S23 Ultra have received One UI 9 with Android 17 on India’s INS channel. Samsung lists October 21, 2026 as the release date for the S23, S23+ and S23 Ultra. Availability on your phone still depends on its exact model and firmware channel.
Looking for the Galaxy S23 FE? Read the separate S23 FE update status below; the S23, S23+ and S23 Ultra rollout dates do not establish availability for the FE.
If you’re still waiting, let me help you check the right model and region. A release note confirms a build for that firmware channel; it doesn’t mean every phone gets the download at the same moment.
Update, October 24, 2026: I rechecked the Indian release notes for all three S23 models. The dates below refer to Samsung’s listed releases, not a single worldwide download date. Samsung lists One UI 9 for Galaxy S23 (SM-S911B), Galaxy S23+ (SM-S916B) and Galaxy S23 Ultra (SM-S918B) on the INS channel. Check the live table below for the regions covered by our tracker.
When did the Galaxy S23, S23+ and S23 Ultra get One UI 9?
Samsung lists October 21, 2026 for the Indian Galaxy S23, S23+ and S23 Ultra One UI 9 releases. The INS builds below use Android 17 and the October 5, 2026 security patch. Match both your model and regional code before using these release details for your phone.
| Phone | Model | India build |
|---|---|---|
| Galaxy S23 | SM-S911B | S911BXXUAGZIF |
| Galaxy S23+ | SM-S916B | S916BXXUAGZIF |
| Galaxy S23 Ultra | SM-S918B | S918BXXUAGZIF |
For another region, use the live status table below or the firmware checker. A similar-looking build is not a reason to flash firmware intended for a different model.
Galaxy S23 One UI 9 Update: Live Status
This table pulls from Samsung’s own release notes and updates itself as new regions get the build. If a model says “No matching release recorded”, our tracker has not recorded a matching release in its monitored channels. That is not confirmation that the update is unavailable everywhere.
Live data from Samsung's official release notes. Last checked Nov 14, 2026, 00:23 UTC.
| Device | One UI 9 status | First release | First build |
|---|---|---|---|
| Galaxy S23 Ultra | Rolling out (41 regions) | Oct 14, 2026, South Korea | S918NKSU8GZIF |
| Galaxy S23+ | Rolling out (41 regions) | Oct 14, 2026, South Korea | S916NKSU8GZIF |
| Galaxy S23 | Rolling out (41 regions) | Oct 14, 2026, South Korea | S911NKSU8GZIF |
| Galaxy S23 FE | No matching release recorded | - | - |
This table covers the models and firmware channels monitored by our tracker. A missing record does not confirm that an update is unavailable elsewhere.
For every other Galaxy phone, check the full One UI 9 update tracker.
Galaxy S23 One UI 9 Rollout Timeline
These are release dates listed by Samsung for specific models and firmware channels. I’ve linked each one so you can check the build yourself.
| Release date | Model and channel | Samsung release notes |
|---|---|---|
| October 14, 2026 | Galaxy S23, S23+ and S23 Ultra, South Korea (KOO) | S23, S23+, S23 Ultra |
| October 19, 2026 | Galaxy S23 Ultra, Europe (EUX) | SM-S918B release history |
| October 21, 2026 | Galaxy S23, S23+ and S23 Ultra, India (INS) | S23, S23+, S23 Ultra |
Galaxy S23 One UI 9 Builds by Region
South Korea got One UI 9 first on October 14, and Europe and the US carriers followed five days later. All of these builds carry the October 2026 security patch. Here’s the first date for each one, from our firmware feed and Verizon’s release pages:
| Region or carrier | Build | First date |
|---|---|---|
| South Korea | S91xNKSU8GZIF |
Oct 14 |
| Europe, Asia, Africa, the Middle East, Australia and parts of Latin America | S91xBXXUAGZIF |
Oct 19 |
| AT&T, T-Mobile | S91xUSQU8GZIF |
Oct 19 |
| Canada | S91xWVLU8GZIF |
Oct 21 |
| Taiwan, Hong Kong | S91x0ZHU8GZIF |
Oct 22 |
| Verizon | S91xUSQU8GZIF |
Oct 23 |
| US unlocked (XAA) | S91xU1UEU8GZIF |
Oct 26 |
Replace the “x” with 1 for the Galaxy S23, 6 for the S23+ and 8 for the S23 Ultra. In South Korea, that gives you S911NKSU8GZIF, S916NKSU8GZIF and S918NKSU8GZIF.
Verizon calls this System Update 50 on the Galaxy S23, S23+ and S23 Ultra. Its phones use a different menu, so look under Settings > System updates > Check for system updates.
Planning a downgrade later? Look at the fifth character from the end of the build first. That’s the bootloader version: A on the international builds and 8 on the Korean and US ones. Odin won’t flash firmware with a lower version than your phone has, and our Samsung firmware version guide explains every character.
When will the Galaxy S23 Ultra get One UI 9 in my region?
Samsung lists October 19, 2026 for the Galaxy S23 Ultra SM-S918B on EUX and October 21 for SM-S918B on INS. These are confirmed channel-specific dates. For another region or carrier model, use the live tracker above to check its own release status.
Don’t compare your phone with a country name alone. Check Settings > About phone for the model number, then Settings > About phone > Software information for Service provider software version. Our Samsung CSC guide explains how to read the region code.
A carrier model can follow a different schedule from an unlocked model. If your channel isn’t listed yet, use the firmware checker and read the release notes for your own model and CSC. For other Galaxy phones, see the One UI 9 India tracker.
Why One UI 9 Is the Last Big Update for the S23
The Galaxy S23 series launched in February 2023 with Android 13 and One UI 5.1. Samsung promised four Android upgrades and five years of security updates for it.
- Android 14 with One UI 6
- Android 15 with One UI 7
- Android 16 with One UI 8
- Android 17 with One UI 9
That makes Android 17 the fourth upgrade from the S23’s original Android 13 software. It completes Samsung’s original four-upgrade promise; an additional major Android upgrade would need a separate commitment.
Security support is a separate promise. Five years from the S23’s 2023 launch points to around 2028, but that is not an announced final-patch date. Our Samsung update policy page has the details.
What One UI 9 Brings to the S23
The Indian Galaxy S23 changelog lists a more customizable Quick Panel, scrolling through earlier Interpreter conversation text, a Warranty and care menu, and a location-access indicator. Read the changelog on your own phone before expecting a feature shown on another Galaxy model.
Check your own model’s changelog before expecting a feature shown on another Galaxy. For the wider update, see my One UI 9 features roundup.
Galaxy Z Fold 5 and Z Flip 5 One UI 9 Builds
The Galaxy Z Fold 5 and Z Flip 5 moved with the S23, on the same dates in South Korea and Europe. Samsung’s notes show this for the Z Fold 5 in Korea and Europe, and for the Z Flip 5 in Korea and Europe. They’re in the same spot as the S23 too: both launched in 2023 with Android 13, so Android 17 is the fourth and last upgrade in Samsung’s promise.
| Region or carrier | Z Fold 5 | Z Flip 5 | First date |
|---|---|---|---|
| South Korea | F946NKSU6HZIJ |
F731NKSU6HZIJ |
Oct 14 |
| Europe, Asia, Africa, the Middle East, Australia and parts of Latin America | F946BXXU7HZIJ |
F731BXXU7HZIJ |
Oct 19 |
| AT&T (Oct 19), T-Mobile (Oct 26) | F946USQU8HZIJ |
F731USQU8HZIJ |
Oct 19 |
| Canada | F946WVLU8HZIJ |
F731WVLU8HZIJ |
Oct 21 |
| Taiwan, Hong Kong | F9460ZSU9HZIJ |
F7310ZSU9HZIJ |
Oct 22 |
| Verizon | F946USQU8HZIJ |
F731USQU8HZIJ |
Oct 23 |
| US unlocked (XAA) | F946U1UEU8HZIJ |
F731U1UEU8HZIJ |
Oct 26 |
Verizon lists these as System Update 44 on the Z Fold 5 and Z Flip 5. Beta testers in South Korea got the stable build first, and SamMobile reported a 485.41MB download on the Z Fold 5 for them.
Live data from Samsung's official release notes. Last checked Nov 14, 2026, 00:23 UTC.
| Device | One UI 9 status | First release | First build |
|---|---|---|---|
| Galaxy Z Fold5 | Rolling out (42 regions) | Oct 14, 2026, South Korea | F946NKSU6HZIJ |
| Galaxy Z Flip5 | Rolling out (40 regions) | Oct 14, 2026, South Korea | F731NKSU6HZIJ |
This table covers the models and firmware channels monitored by our tracker. A missing record does not confirm that an update is unavailable elsewhere.
How to Install One UI 9 on Your Galaxy S23
Follow Samsung’s supported software-update steps and back up your phone first. Our backup guide for One UI 9 explains the options.
- Back up your data, charge the phone and connect to Wi-Fi before starting. Follow any battery or storage requirement shown by the updater.
- Open Settings.
- Scroll down and tap Software update.
- Tap Download and install.
- If One UI 9 shows up, tap Download and then Install now.
- Let the installation finish and keep your phone connected to power if needed. The time it takes varies.
If nothing shows up, check whether your country is on the list above. Samsung pushes updates in batches by region and carrier, so one S23 can get it days before another, even in the same country. If your S23 still isn’t offered the update, our update not showing guide checks the model, CSC and carrier in order.
If you are considering a manual installation, first confirm the exact model and CSC. Our guides explain downloading with Frija and installing with Odin. Only do this if you’re comfortable with Odin, and back up your data first.
FAQ
Is One UI 9 out for the Galaxy S23?
Yes. Samsung’s release notes confirm Android 17 with One UI 9 for the Galaxy S23, S23+ and S23 Ultra on India’s INS channel, dated October 21, 2026. It has also reached South Korea, Europe, Canada and the US carriers. The model-specific links and build numbers above let you check the release that applies to your phone.
When will the Galaxy S23 get One UI 9 in India?
It has started. Samsung lists October 21, 2026 releases for the Indian Galaxy S23, S23+ and S23 Ultra, using builds S911BXXUAGZIF, S916BXXUAGZIF and S918BXXUAGZIF. All three list the October 5, 2026 security patch. You can verify them in the Samsung INS release notes linked above.
Will the Galaxy S23 get One UI 10?
One UI 10 is not part of Samsung’s original four-upgrade promise for the Galaxy S23. One UI 9 with Android 17 uses the fourth promised Android upgrade; a future extension would need a separate Samsung announcement.
Does the Galaxy S23 FE get One UI 9 too?
Check it separately from the S23, S23+ and S23 Ultra. When I checked on November 4, 2026, Samsung’s Indian S23 FE release notes still listed Android 16, with build S711BXXSJGZI6 from October 29 and the October security patch. That finding applies to SM-S711B on INS, not every S23 FE worldwide.
When will the Galaxy S23 stop getting security updates?
Samsung promised five years of security updates for the S23 series. That points to around 2028 based on its 2023 launch, rather than confirming an exact final-update date. Check Samsung’s current security-update scope for its listed patch schedule.
What patch is my S23 on right now?
Go to Settings > About phone > Software information and look at Android security patch level. You can compare it with the latest patch on our security update checker.
Still not seeing it? Tell me your Galaxy model number, CSC and current build in the comments. Those details make it easier to check which release applies to your phone.
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