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By Parth
Hello Samsung / Tizen Technical Support Team,
We are observing a playback issue on Samsung Tizen TVs when streaming DRM-protected content that uses a multi-key DRM configuration. We would like to report the issue and request assistance in investigating the behavior on Samsung devices.
DRM Provider: Castlabs
DRM Type: Widevine
Streaming Format: MPEG-DASH (MPD)
Player Environment: Samsung Tizen Application using the Samsung AVPlay / native playback stack.
Content DRM Configuration:
Our content is packaged with a multi-key DRM setup, where different resolution groups use different encryption keys:
Key 1: 360p, 480p, 720p
Key 2: 1080p, 4K
Observed Issue:
Playback starts normally and the video plays correctly at the initial resolution. However, when the adaptive bitrate algorithm triggers a resolution change that requires switching DRM keys, playback fails.
Specifically, the issue occurs in the following scenarios:
When switching from 720p → 1080p or higher
When switching from 1080p → 720p or lower In both cases, the switch requires a DRM key change, and the playback fails shortly after the transition.
Additional Observations:
If we modify the MPD to limit playback to only one key group (for example, only up to 720p or only 1080p and above), playback works correctly without any interruption.
The issue appears only when the player needs to switch between representations encrypted with different keys.
Playback works correctly on other platforms using the same MPD and DRM configuration.
The issue appears specific to Samsung Tizen playback behavior during multi-key DRM key transitions. Device Details (Example Device Where Issue Was Observed):
Model Code: UA32T4380AKXXL Software Version: T-KTS2UABC-2700.6 Platform: Samsung Tizen TV Error Behavior:
Video plays normally for some time and then fails after a resolution change requiring key switch. In some cases playback stops after ~20–30 seconds when adaptive bitrate switching occurs. Request:
Could you please confirm:
Whether multi-key DRM streams with adaptive bitrate switching across keys are fully supported on Samsung Tizen TVs.
If there are specific packaging or DRM license configuration requirements for multi-key playback.
Whether there are known limitations in AVPlay or Tizen DRM handling related to key switching during DASH adaptive playback. We would appreciate any guidance or debugging steps that could help identify the root cause of this issue.
Device Details:
Test Labs Device: Korea (Suwon-TV), NEO QLED 4K, QN55QN80F(2025), Tizen 9.0, QN55QN80FAFXZA
Actual TV: UA32T4380AKXXL (Model Number)
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By Samsung Newsroom
September 2025 Samsung In-App Purchase SDK v6.5.0 Released
An updated version of the Samsung In-App Purchase (IAP) SDK has been released. In the new version 6.5.0, the “obfuscatedAccountId” and “obfuscatedProfileId” parameters are now accessible. When an application requests a purchase, these parameters are used to provide encoded values that are associated with the customer's account and profile in your application. These values are also returned with queries about purchases and items purchased, so the application can take advantage of them. Galaxy Store uses them to detect fraudulent payments.
Learn more "Samsung AI Forum 2025" Hosted
Samsung hosted the "Samsung AI Forum 2025" on September 15 and 16, sharing their latest AI research outcomes and future directions.
On September 15, the DS Division discussed the current AI technologies for designing and manufacturing semiconductors and their future, under the title "Semiconductor Industry's Vertical AI Strategies and Visions" at The UniverSE in Yongin, South Korea. Professor Yoshua Bengio from University of Montreal introduced "Scientist AI", highlighting its reliability and the acceleration of scientific discoveries, while Amit Gupta, VP at Siemens EDA, suggested an end-to-end approach to the AI-based automation of digital designs.
On September 16, the DX Division hosted an online forum under the theme "Generative to Agentic AI," regarding on-device AI and AI agent technologies to boost work productivity.
The two-day forum successfully concluded with the world-class academics and researchers from Samsung exploring how AI can drive innovations in industry and society.
Day 2 of the event, held online, is now available to watch on YouTube.
Watch the Replay SmartThings Q2 Updates - Expansion in Development Tools, Applications, and WWST
WWST partner products are now available for purchase on Samsung.com, providing direct access to over 500 million global visitors every month. The SmartThings Test Suite has also been upgraded, allowing most hub-connected devices, including Matter devices, to receive WWST certification through self-testing, free of charge. New partners and products have also joined the ecosystem, including Arlo Camera with AI-powered features, further expanding the WWST ecosystem. This expansion marks an important milestone for SmartThings, now with more than 400 million users globally. Learn more about this exciting news here. Build Custom Complications for Galaxy Watch
Using complications, Galaxy Watch faces can display a wide range of information in addition to time, such as battery level, calendar events, and step count. Developers can build Complication Data Sources to seamlessly share their application data with compatible watch faces, and use slots to set up the information they want in a complication. This blog post uses a sample application called Hydration Tracker to walk through the development process, from the implementation of data sources to adding icons and tap actions. Create your own complications, such as weather forecast, battery status, or custom application statistics data, and enhance your Galaxy Watch experience.
Learn more Samsung Certificate Extension Update for the Smart TV SDK
Samsung Certificate Extension Update for the Smart TV SDK version 2.0.74 is now officially released. This update to the latest version is mandatory starting September 2025 to further strengthen security. You will be unable to generate new certificates without this update, which may lead to certificate errors during application releases and updates, and potentially causing service restrictions. Learn more about the update on the Samsung Developers Portal.
Learn more Samsung Unveils “AI Home: Future Living, Now” Vision at IFA 2025
At a press conference before IFA 2025 in Berlin, Samsung unveiled its vision for the “AI Home”. AI Home is built on "Ambient AI" which controls features of the home environment such as temperature, lighting, and movement, to deliver seamless, tailored experiences for its users. Samsung presented four key benefits of AI Home, which are ▲Convenience and ease of use, ▲Health and safety, ▲Saving time and energy, and ▲Robust security.
Various new products and product lines powered by AI technologies have also been unveiled, including Bespoke AI (appliances), Vision AI (display), Galaxy AI (mobile), with a vision to bring more than 1 billion AI devices to homes globally within the next three years. Learn more about Samsung's AI Home vision on the Newsroom.
Learn more Tutorial: Samsung IAP Publish API Web Integration
The Samsung In-App Purchase (IAP) API is released, which enables developers to efficiently manage IAP products within their applications. The Samsung IAP Publish API helps to consistently manage IAP products with server-to-server communication and web applications, and supports key CRUD (Create, Read, Update, Delete) operations to easily update product details such as price and description. This tutorial walks you through the IAP Publish API integration progress utilizing the back-end Spring Boot servers and an intuitive web UI. Learn more about this on our blog.
Learn more Tutorial: Building a Watch Face with Watch Face Format
Watch Face Studio is a great tool that allows you to design watch faces without needing any coding skills. However, if you want to have more control, Watch Face Format is the way to go. It lets you define your watch face using XML's declarative structure, giving you precise control over appearance and behavior. Since Watch Face Format is optimized for Wear OS, both maintenance and updates are easy. This tutorial guides you through the process of building a watch face, starting from how you set up a project in Android Studio, to configuring the “watch_face_info.xml” file, customizing layouts, and validating memory footprints. Create more sophisticated and refined Galaxy Watch experiences with Watch Face Format.
Learn more Predicting High-Precision Depth on Low-Precision Devices Using 2D Hilbert Curves
Samsung R&D Institute Ukraine has proposed a new method to achieve high-precision depth prediction even in environments with strong limitations on hardware capabilities. While computing and memory constraints on existing low-end devices often faced accuracy issues in depth maps, the team used depth representations as points on a 2D Hilbert curve to minimize the data precision loss that occurs during the quantization process.
This approach allows precise depth prediction even on low-precision mobile, IoT, and robotics devices. This broadens its potential applications across different areas, including AR/VR, autonomous driving, robotics, etc. On the Samsung Research blog, you can find out more about the research that enables high-precision deep learning models to run efficiently on low-end devices.
Learn more Zero Trust Architecture for 6G
Most traditional security systems have relied on perimeter-based approaches, such as firewalls, VPNs, and DMZs. In today's ever more open and complex world, however, this is no longer sufficient to defend against a variety of risks, including insider attacks and the compromise of trusted components.
Many organizations are already moving toward a Zero Trust Architecture (ZTA), which continuously verifies users and devices to authorize access even inside the network. Samsung Research conducts an in-depth analysis on the need for ZTA in 6G environments and its potential applications, suggesting methods to safeguard sensitive data and critical assets through continuous monitoring and validation, strict access control, dynamic policy enforcement, and more. On our blog, you can find out more about Samsung Research's efforts to build a more resilient and secure 6G infrastructure in an increasingly complex digital landscape.
Learn more View the full blog at its source
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By Daniel
I’m still dealing with persistent UI lag and bugs on my Samsung S95B, and I’m surprised this issue continues even this year with brand new firmware 1661 and resets.
Symptoms:
Menu interface is slow and laggy, especially in Settings and Home screen.
Scrolling causes stutters or jumps/skips lines in some menus.
Delays when switching inputs, opening apps, or using Smart Hub.
UI gradually becomes less responsive the longer the TV stays on.
What I’ve tried (none of these solved it):
Updated to firmware
Multiple cold boots (hold power button until restart)
Smart Hub reset
Disabled TV Plus, Autorun content, ad services, autoplay previews, etc.
Clean install with only core apps
Factory reset → works for a few days then problem returns
Disconect internet
Only “solution” that works (but temporarily):
Using “Device Care > Memory Cleanup”
It improves UI performance significantly...
BUT only for couple hours
After that, lag and line skipping come back just like before.
So far, this is the only reliable way to temporarily fix the sluggish interface.
Likely cause (based on community feedback):
Tizen OS memory mismanagement (leaks, poor RAM recycling, app bloat)
Possibly related to ad-driven Smart Hub tiles or unoptimized background services
UI lag happens even with no streaming apps open and minimal setup
What I’m asking the community:
Has anyone found a real permanent fix????
Any way to disable Smart Hub completely or force a minimal launcher?
Anyone rollback to a more stable firmware (e.g. 1304, 1430) and fixed this?
Did anyone get Samsung to acknowledge or repair it under warranty?
It’s frustrating to have a flagship OLED 2500$ USD with incredible picture quality, but an TIZEN OS that feels like it’s choking on basic tasks. Hoping for any solutions beyond daily memory cleaning.
On my opinion this is a bad memory using that cause this. Memory because saturated over time.
In all case, Tizen team should redo their homework ASAP.
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By Samsung Newsroom
Samsung Electronics today announced a significant expansion of the Samsung Tizen OS Licensing Program, reinforcing its position as a leading provider of smart TV operating systems.
Tizen OS Continues To Grow As Reliable Smart TV Platform
Following the launch of Samsung Tizen OS 8.0, the licensing program now includes prominent original design manufacturers (ODMs). This marks an important milestone in the evolution of the Tizen ecosystem and demonstrates strong global demand for Samsung’s acclaimed smart TV platform. In its licensing program, Samsung continues to build strategic partnerships with companies that prioritize high-quality products and reliable support throughout the entire value chain.
Additionally, Samsung Tizen OS will be embedded in new TVs from well-known brands in key markets, enhancing its presence across Europe, North and Latin America, and Australia. Notable new additions include EKO and QBELL (Ayonz) in Australia and Europe, RCA (Kayve Groupo) in Mexico, RCA (Treasure Creek) in the United States and Canada, and Axdia in Germany. Many more brands are expected to join in the second half of 2025 as Samsung continues to expand its strategic partnerships into new markets.
“We are proud to expand our RCA TV portfolio across Mexico and Latin America through our partnership with Samsung’s Tizen OS,” said Jonathan Vera, Head of Marketing & Communications, Grupo Kayve. “The Tizen team provides comprehensive technical and marketing support, enabling an agile go-to-market process.”
“Partnering with Samsung on Tizen OS allows us to deliver high-quality and competitive smart TV solutions to our global brand customers,” said Gerard Louis, Chief Operating Officer (COO) at Axdia,
Premium Content and Connectivity at Core of Tizen OS-Powered Smart TVs
Samsung is also dedicated to continuous platform innovation, introducing smart features such as advanced content discovery, integration with Samsung TV Plus for FAST channel services, cloud gaming capabilities via Samsung Gaming Hub, and seamless multi-device connectivity through SmartThings. These enhancements ensure that licensees benefit not only from proven technology but also from a forward-looking platform that adapts to evolving consumer expectations.
To further differentiate Tizen-powered TVs at retail, Samsung offers tailored marketing kits and digital content toolkits for each region, enabling partners to highlight key attributes such as premium content access, fast performance, and smart connectivity—all backed by Samsung’s robust global brand credibility.
As the Tizen OS Licensing Program evolves to meet the needs of global partners, Samsung is broadening regional coverage, introducing more affordable hardware solutions, and enhancing app availability worldwide. Moreover, partners can gain access to Samsung’s specialized R&D support to confidently bring Tizen-powered smart TVs to market.
“Tizen OS is recognized for its performance, reliability, and innovation,” said Jooyoung Kim, Vice President at Samsung Electronics. “This year, we are focused on expanding our licensing program and creating diverse collaboration strategies for our key partners. We are serious about growing our global partner network and enhancing the ecosystem. By offering expanded regional support, an enriched app ecosystem, and tailored marketing resources, we aim to deliver even greater value to consumers worldwide.”
With Tizen OS extending beyond Samsung’s own TV offerings, the company remains steadfast in its commitment to delivering an open, robust, and premium smart TV experience for consumers around the world.
View the full article
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By mramnesia97
My Samsung Smart TV's (Model Code: QE55Q80AATXXC) app window is completely broken. I'm trying to enable developer mode but as soon as I enter "Apps" the window is frozen. I cannot scroll or click on anything. I can activate to press the 123 digits, but nothing happens when I try to input 1,2,3,4,5
I've tried resetting the TV completely, unplugged it, cleared cache and everything else I can think off.
What could possibly cause the Apps drawer to not work and be completely frozen?
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