Unable to Connect via SDB on QN65QN90DAFXZA with Developer Mode Enable

Smart TV
1

Hi there,

I’m a developer trying to test a Tizen .wgt app on my Samsung QN65QN90DAFXZA TV (2023 model). The TV is running firmware version T-PTMDAKUC-1301.1.

I’ve followed the normal procedure:

  • Enabled Developer Mode via the Apps screen (1-2-3-4-5)
  • Entered my PC’s IP address
  • Rebooted the TV
  • Verified port 26101 is open using Test-NetConnection
  • But when I try sdb connect 192.168.0.34:26101, I get:

failed to connect to remote target

Just to confirm:

  • My PC and TV are on the same Wi-Fi network
  • I can ping the TV just fine
  • Port 26101 is open (confirmed via PowerShell)

Is sideloading via SDB disabled for this model or firmware version?
If so, is there any way to unlock or enable full Developer Mode, or is this now limited to Samsung’s commercial SSSP displays?

Thanks in advance!

2

Hello,
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