QN50QN90DAFXZA Setup Menu Shutdown
Looking for some assistance with an issue that just surfaced with my tv:
Product Information
Brand/Model: Samsung QN50QN90D (50” Neo QLED 4K)
Model Code: QN50QN90DAFXZA
Manufactured: June 2024 (Made in Mexico)
Symptoms
The TV experienced a sudden failure following a factory reset. For context: I factory reset because back when ambient mode was a thing, I had set up the art mode. Recently, I got tired of it and went to turn it off but the ambient menu no longer exists. There appeared to be no way to disable the art mode so I decided to factory reset. Prior to the reset, the TV was functioning normally with no issues. After completing the factory reset:
-The TV powers on and displays the initial setup screen (QR code pairing screen)
-Within a short period (10-20 seconds), the TV shuts off on its own in what appears to be a graceful/controlled shutdown (not a crash or hard cutoff)
-This power-on/auto-shutoff cycle repeats consistently, preventing the unit from ever completing initial setup
-The TV cannot be used at all in this state, it never progresses past the QR setup screen
Troubleshooting Already Performed
-Full power cycle: unplugged from wall outlet, held physical power button for 30+ seconds, left unplugged 5+ minutes, reconnected directly to wall (no surge protector/UPS)
-Confirmed issue is not related to remote, Wi-Fi network, or SmartThings app interference. I did attempt it with and without an Ethernet cable connected
-Researched the issue and found one other forum post with identical symptoms:
YouTube from that post (exact same as mine):
https://youtube.com/shorts/0c1tsjs7xnE?feature=share
-Attempted to access the TV’s service menu for deeper diagnostics, but was unable to without it eventually shutting down. This was interesting because it did last a bit longer while it was going into the SM. As soon as I started to navigate around the SM, without getting to change anything, it shuts down.
Warranty just ran out so I’m either looking at attempting to fix this myself if it’s a hardware issue or any suggestions if it’s a potential software/firmware issue.
Thanks in advance!