Since the latest firmware (1202.3) my 55NU7100 has developed an issue. Basically, if using HDMI 1-2-3, when I power on the TV, I get a black screen (no smart hub/no picture). The TV is on, I can hear sounds when I press remote buttons, but the screen is not showing a picture.
The solution to temporarily fix this issue is to turn the TV back off & on OR to power on the TV by pressing a channel button (instead of power button) which launches into the DTV, that doesn’t exhibit the blank screen issue (experienced when using HDMI 1-2-3). It seems the latest firmware brought with it a HDMI handshake fail problem.
I thought I’d check to see if anyone else here is having this problem &/or has found a solution. A few people on avsforums/rtings.com have indicated they have the same issue since firmware 1202.3, on both the NU7100 & NU8000. I've contacted Samsung but they won’t allow me to rollback the firmware and won’t confirm if/when a new firmware will come and if it does, whether it will address this problem.
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Surprisingly, this exact issue happened to me right before the update. I actually was going to update in hopes it would solve the issue, but it seems like that's not going to be the case. Hopefully there will be a fix soon. When it first happened, I got freaked out my 2 month old TV just died on me.
It appears this issue has already been reported in this thread, albeit for a NU8 series TV. Reading thru the varous threads, it seems the issue occurs across all Samsung 2018 TVs (NU7, NU8, QF series). There is a "fix" suggested, although Samsung told me if I attempt it myself, it would void the warranty. Let's hope they push out a firmware update shortly.
In my case, I have perfectly fine video and audio, and can control via remote, but I do not see any elements of the UI. No volume level indicator or Home Menu. I only use apps and a PS4 on HDMI1 on an NU8000. No other input devices.
Soft power cycling via remote or TV power button resolves this UI glitch.
A user at RTINGS.com claimed the issue only occured in GAME mode. I ran some tests and can concur this is accurate. Even if nothing is plugged into the HDMI cable, if the HDMI port is assigned to GAME mode, the blank screen issue occurs. If GAME mode is turned off, the issue disappears. Definite software bug.
I'm having this exact same issue. I purchased an nu7100 and replaced it because of this issue, got another one, same issue, took it back and got a Q6FN and it has the same issue. Two of my friends have the nu7100 and don't have this problem and anohter has the Q6FN and no issue. Why do I keep getting it and they don't? I contacted samsung and they said it was an internal issue but what are the odds of having the same internal issue 3 times? Additionally, I contacted them and they said they have 0 reported problems wiht the 1202.3 so they do not plan on fixing it.