How to Download & Install One UI 8.5 Beta on Samsung
Download & Install One UI 8.5 on Samsung Galaxy Devices [Full Guide 2026]
Samsung's One UI 8.5 — powered by Android 16 (QPR2) — is the biggest mid-cycle upgrade Samsung has ever released. It launched first on the Galaxy S26 series and is now rapidly rolling out to Galaxy S25, S24, S23, Z Fold/Flip, and even Galaxy A-series phones. In this guide, you'll find a full changelog, the complete eligible device list, step-by-step install instructions, and direct firmware download links — all updated for April 2026.
Important — Back Up First! Before installing any update or beta build, back up your data via Settings → Accounts and backup → Back up data. Beta firmware may contain bugs.
What's New in One UI 8.5
Don't let the ".5" fool you — One UI 8.5 is packed with Galaxy AI upgrades, a redesigned interface, powerful cross-device features, and enterprise-grade security. Here's everything that's new:
🤖 Galaxy AI Enhancements
Continuous Image Generation
Photo Assist lets you generate AI images without saving between iterations. Review all creations in your history and pick your favourites.
Smarter Quick Share
Quick Share recognises faces in photos and proactively suggests sending images directly to those contacts.
Now Nudge
Shortcut suggestions for your next logical action based on your usage patterns — no more jumping between apps.
AI Agent
Delegate multi-step tasks to AI Agent. Just type a prompt and it navigates apps and completes the task for you.
Improved Now Brief
Personalised briefings based on your interests, event reminders, and context-aware action suggestions throughout the day.
Smarter Bixby
Bixby remembers context, answers live sports and news questions, and helps customise settings through natural language.
🔗 Cross-Device Connectivity
Storage Share
Files from your Galaxy phones, tablets, and PCs appear in My Files — even browse your phone from a Samsung TV.
Quick Smart View Shortcut
Add a Home screen shortcut to instantly mirror your screen to a TV or display — no Settings navigation needed.
Voice Broadcasts (Auracast)
Broadcast your voice to nearby LE Audio devices using your phone's mic — perfect for tours and group events.
AirDrop-Style Quick Share
Select Galaxy devices now share files with Apple devices using AirDrop protocol — a Samsung-first feature.
🛡️ Security & Privacy
Native App Lock
Most-requested feature finally arrives — built-in app locking, no third-party app needed.
Failed Authentication Lock
Too many failed biometric or PIN attempts? Screen auto-locks immediately to block access.
Enhanced Theft Protection
Knox-backed protection keeps your device and data secure if lost or stolen.
🎨 Design & Personalisation
- Blur-heavy UI redesign — Translucent blurred layers applied across key interface areas for a modern, layered look.
- Quick Panel overhaul — Resize brightness/volume bars and customise shortcut tiles to fit your workflow.
- Lock Screen updates — Richer weather widgets, new clock styles, greater personalisation freedom.
- Home Screen freedom — Place icons, folders, and differently-sized widgets anywhere on the grid.
- Redesigned Weather app — New dynamic animations, improved data visualisation and forecasting.
- Revamped Battery info — Clearer per-app and per-timeframe battery usage breakdowns.
- 133 new emoji — Updated emoji set ships with One UI 8.5.
Eligible Devices — Full List
One UI 8.5 is expected to reach nearly 100 Galaxy smartphones and tablets throughout 2026. Blue chips = currently in beta program.
Galaxy S Series
FlagshipGalaxy Z Foldable Series
FoldableGalaxy A Series
Mid-RangeGalaxy M & F Series
BudgetGalaxy Tab Series
Tablet🔵 Blue chips = Beta currently open. Stable update availability varies by region.
Rollout Timeline
Beta Launch — Galaxy S25 Series
Beta opened for S25, S25+, S25 Ultra. Multiple builds through January 2026.
Beta Expands — S24, Z Fold/Flip 6 & 7, Tab S11
Galaxy S24 series, Z Fold 6/7, Z Flip 6/7, S25 FE, S24 FE, and Tab S11 join beta.
S23 Series, Z Fold/Flip 5, Galaxy A36 (First A-Series Ever!)
S23, S23+, S23 Ultra, S23 FE, Z Fold 5, Z Flip 5 join beta. Galaxy A36 5G becomes the first A-series device ever in a One UI major beta (India only).
More A-Series (Coming Soon)
Samsung confirmed a second April wave for Galaxy A56, A55, and more mid-range devices.
Stable Release — Flagship Devices
Galaxy S25, Z Fold 7, Z Flip 7 expected stable. S24 series and Fold 6/Flip 6 to follow.
Stable Rollout — S23, A-Series, Tablets
Full stable rollout projected to complete by end of June 2026.
Download One UI 8.5 Firmware
Note: One UI 8.5 stable firmware is not yet publicly released (as of April 2026). Beta firmware is available via the Samsung Members app. For manual firmware downloads, use trusted sources like SamMobile or SamFirm. Stable download links will be added here the moment they go live.
✅ How to Download Firmware from SamMobile (Free)
- Click the SamMobile Firmware Page button for your device below.
- On SamMobile, select your country/region from the dropdown (e.g. BTU for UK, INS for India).
- Find the latest One UI 8.5 build (look for firmware version ending in
ZZDor higher). - Click Download — free downloads are available (premium gives faster speed).
- Once downloaded, use Smart Switch or Odin to flash, or ADB Sideload (see Method 3 below).
Galaxy S25 / S25+ / S25 Ultra
Beta 9 · ZZD5⚡ Stable firmware will be linked here once released. Beta 9 is near-stable quality. Available in India, South Korea, UK, USA.
Galaxy S25 FE
Beta 2Enroll via Samsung Members app first, then download via OTA. 3 new camera filters in Beta 2.
Galaxy S24 / S24+ / S24 Ultra
Beta 2 · ZZD5Rolling out in India and South Korea. More regions to follow.
Galaxy S24 FE
Beta 1Beta 1 available. Enroll via Samsung Members first.
Galaxy S23 / S23+ / S23 Ultra / S23 FE
Beta 1 · ZZD5Launched April 2026 in India and South Korea. UK and USA to follow. Enroll via Samsung Members app first.
Galaxy Z Fold 7 / Z Flip 7
Beta 2Stable One UI 8.5 expected April–May 2026. Beta 2 live now.
Galaxy Z Fold 6 / Z Flip 6
Beta 1Enroll via Samsung Members app. Beta 1 available.
Galaxy Z Fold 5 / Z Flip 5
Beta 1Beta limited to US and South Korea. Enroll via Samsung Members.
Galaxy Tab S11 / Tab S11 Ultra
Beta 1Enroll via Samsung Members app on your tablet.
Galaxy A36 5G
Beta 1 · India OnlyHistory made — first A-series in a One UI major beta. India users enroll via Samsung Members.
Galaxy S22 Series & Older / Other A-Series
Stable ComingStable One UI 8.5 for older and mid-range devices expected May–June 2026. Links will be added here once live. Note: S22 series will receive One UI 8.5 as their last major Android update.
🔗 Trusted Alternative Firmware Sources
| Source | What It Offers | Link |
|---|---|---|
| SamMobile | Full firmware archive for all Samsung devices, all regions. Free & premium downloads. | Visit → |
| SamFirm | Windows tool to download Samsung firmware directly from Samsung's servers. | GitHub → |
| Frija / Bifrost | Open-source Samsung firmware downloader. Download directly from Samsung servers. | GitHub → |
| XDA Forums | Community threads with firmware mirrors, beta builds, and ADB sideload guides. | Visit → |
| Samsung Smart Switch | Official Samsung desktop tool. Detects your device and downloads correct firmware automatically. | Official → |
Method 1: OTA Update EASIEST
If your device is officially receiving the stable One UI 8.5 update, this is the simplest and safest method.
Connect to Wi-Fi
Ensure you're on a stable Wi-Fi network. OTA packages are several gigabytes in size.
Open Software Update
Go to Settings → Software update → Download and install.
Check for Updates
Tap Check for updates. One UI 8.5 will appear if available for your device and region.
Download & Install
Tap Download, then once complete tap Install now. Your device restarts and applies the update.
Method 2: Join the Beta Program
Get One UI 8.5 weeks before stable release. Available in India, South Korea, USA, UK, Germany, and Poland for supported devices.
Requirements: SIM card inserted, Samsung Account signed in on device and Samsung Members app.
Open Samsung Members
Install/update Samsung Members from the Galaxy Store. Sign in with your Samsung account.
Find the Beta Banner
On the Discover tab, scroll down to find the One UI 8.5 Beta Program banner. Tap it.
Enroll Your Device
Tap Enroll. Read and accept the T&C. Wait a few minutes for verification.
Download the Beta
Go to Settings → Software update → Download and install. The One UI 8.5 Beta will appear. Download and install.
Restart & Enjoy
After installation, your phone restarts. First boot may take a few extra minutes. Welcome to One UI 8.5!
Stuck on "Processing Join Request"? Try signing out and back into your Samsung Account, or wait a few hours and try again.
Method 3: ADB Sideload (Manual)
Have the firmware downloaded from the links above? Install it manually using ADB Sideload — no unlocked bootloader required.
Advanced Users Only. Verify firmware matches your exact device model and CSC (region code) before flashing.
Prerequisites
- PC with ADB installed (Windows / Mac / Linux)
- Samsung USB Drivers (Windows only)
- Correct One UI 8.5
.zipfirmware for your model (download from links above) - At least 50% battery
- Original Samsung USB cable
Enable USB Debugging
Go to Settings → About phone → Software information, tap Build number 7 times. Then enable USB Debugging in Developer Options.
Connect & Verify
Connect via USB, tap Allow on your phone. In terminal run:
adb devices
Reboot to Sideload Mode
Run:
adb reboot sideload
Flash the Firmware
Replace the filename with your actual downloaded file:
adb sideload OneUI8.5_GalaxyS25_Firmware.zip
Wait & Reboot
Takes 10–20 minutes. Do not disconnect. Device reboots automatically when done.
Done! Verify at Settings → About phone → Software information. You should see One UI 8.5.
Frequently Asked Questions
🔔 Stay Updated on One UI 8.5
We update this page as new beta builds drop and stable firmware links go live. Bookmark SamFlux.com to never miss a Samsung update.
📌 Bookmark This Page 📰 More Samsung GuidesLast updated: April 12, 2026 · © 2026 SamFlux.com · Not affiliated with Samsung Electronics Co., Ltd. · Firmware links lead to trusted third-party sources.
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