Hi, I use the Samsung JU7500 as television, so an 2015 edition. I use last beta : "5.3.0 Release Candidate 2" (November 23, 2015) Link : https://unity3d.com/unity/beta/unity5.3.0f2 And the "Samsung TV Target Support" corresponding of it. Link : http://beta.unity3d.com/download/ce...tup-Samsung-TV-Support-for-Editor-5.3.0f2.exe I find and install "Unity Launcher" from online store and open it on the television. I do a "switch platform" to "SamsungTV" to be able to set the ip of the tv (192.168.1.xx) in the "Player Preference" in Unity, and finally do a "build and run". Even with an empty project and just the default empty scene, I have this error. I have this error when I read "Get Prev Full Log" on "192.168.1.xx:8899" : "[UnityLauncher] Unity Launcher version 1.5.77 (fdca4e407c05) (STANDARD_15) [UnityLauncher] Error: pubkey import failed![UnityLauncher] ERROR: Launching game failed: Game failed verification. [UnityLauncher] Telnet connection accepted [UnityLauncher] Telnet connection accepted [UnityLauncher] Error: pubkey import failed![UnityLauncher] ERROR: Launching game failed: Game failed verification." And this one when I read "Log" of the game : "UnityLauncher] Error: unitygame.so: failed to map segment from shared object: Operation not permitted [UnityLauncher] UnityClient not initialized properly! (m_Handle == NULL) [UnityLauncher] ERROR: Launching game failed, cleaning up.." And I have a message on the top of the television : "Smart Security: A malicious process has been blocked. [Process : /opt/down/common/3201501000975/unitygame.so]" I found nothing on internet and on this forum, so can you help me ? Very cordially. PS : I already did a full uninstall, then a full install, and try again without any changement. PS 2 : Also, as I have no idea to do now, I already try with Tizen. So I downloaded the SDK and the IDE, set the profile path and create a certificat to be able to sign, but even if everything work (so I can sign and build) I can not upload because Unity doesn't find device (my television) and I i select manually the file it upload and do nothing (like no upload), so I guess I start right with "Samsung TV" build and no "Tizen" build.