Beta firmware for the Galaxy S26 Extremely is already on Samsung’s servers.
Should you’ve been aggressively refreshing the Samsung Members app in your Galaxy S26 within the hope of seeing the One UI 9.5 beta, you are losing your time — though you will not have to attend for much longer. A One UI 9.5 beta construct for the Galaxy S26 Extremely has appeared on Samsung’s Korean and US replace servers, which is usually the final step earlier than the corporate opens registrations.
Samsung hasn’t introduced the beta or a launch date, however its final point-five replace, One UI 8.5, opened to testers on December 8 2025. One UI 9.5 is anticipated to launch with the Galaxy S27 early in 2027, so a beta launch is unquestionably imminent. Should you’re , signing up will work the identical means as final time: register in Samsung Members, then obtain the beta out of your cellphone’s settings as soon as it is accessible. That’s, offered you reside in one in every of six nations — Germany, India, Poland, South Korea, the UK or the US — and personal the proper cellphone.
The construct that is been noticed is firmware model S948BXXU6ZZK3, and it is for the S26 Extremely solely, although different S26 telephones and servers will virtually actually get the beta. Fanatic website SammyGuru additionally expects the S25 sequence, Z Fold 8 and Z Flip 8 to get the beta as properly. Even in case you have an S26, although, you might miss out for those who purchased it by a provider. The One UI 8.5 beta was solely accessible for unlocked telephones within the US, and customers with a carrier-locked S26 will in all probability have to attend for the secure launch.
When the beta is prone to open
Samsung opened the One UI 8.5 beta on December 8, 2025, for the Galaxy S25, S25+ and S25 Extremely, however not everybody bought it on day one: House owners in Poland and India had to attend till the second beta construct on December 22. Samsung launched One UI 8.5 on the Galaxy S26 at its February 2026 Unpacked occasion, and launched a beta for the Galaxy S24 sequence, Z Fold 6, Z Flip 6, S25 FE, S24 FE and Galaxy Tab S11 in late March.
The One UI 9.0 beta rolled out on Might 13, and the secure model launched with the Galaxy Z Fold 8 and Z Flip 8 on July 22, consistent with Google’s Android 17 launch. One UI 9.5 continues to be primarily based on Android 17, placing it in the identical mid-cycle slot 8.5 crammed final yr and timed for the following Galaxy S telephones. As of writing, Samsung hasn’t introduced a date for the S27’s Unpacked occasion, although it’s going to in all probability mirror latest years and fall someplace in January or February.
Fanatic website SammyFans has pencilled in early December for the beta, whereas SamMobile thinks registrations might open in November. Each websites are working from a single earlier point-five launch, although; the S26’s Extremely construct sitting on Samsung’s servers is a much better indication {that a} beta is imminent.
How to enroll
To join the beta, you will want a Samsung account and the Samsung Members app, which you’ll obtain from the Galaxy Retailer or Google Play. As soon as the beta itself goes stay, you will merely have to open Samsung Members, faucet the One UI 9.5 banner or beta card on the house display screen and choose Registration for One UI Beta Program. In case your cellphone and nation qualify, Samsung will enrol you. From there, head to Settings > Software program replace > Obtain and set up to get the beta. Samsung rolls builds out step by step, so do not panic if it would not present up instantly.
Earlier than putting in the beta, it’s best to replace all of your apps and again up your cellphone to a pc with Good Change, since beta software program can corrupt your knowledge. Should you come throughout any bugs, you may report them by Samsung Members > Participated Beta take a look at > Beta suggestions > Ship suggestions.
Exiting the beta is the extra awkward half. You may withdraw by navigating by way of Samsung Members > Settings > Beta program settings > Withdraw from beta program, however that does not take away the beta construct itself. As a substitute, you will have to plug your cellphone into a pc and use Good Change to run a Downgrade, which can wipe every thing you’ve got executed throughout testing. Should you select to remain on the beta, you will get the completed One UI 9.5 as a standard replace, at any time when that’s. So, in case your S26 is your solely cellphone and you do not preserve common backups, it is value sitting this one out and ready for the secure launch.
