Since getting the firmware update 1200. No restarts for 3 wks now. yeah!
Other threads on other websites suggest that this is an ongoing problem with some models of the Samsung LED Smart TVs. It appears that everyone's experience dealing with Samsung regarding this issue is different. Clearly, Samsung, after months of complaints, must realize that fiddling with remotes and wires, resetting the TV, and updating firmware is not the answer. If and when Samsung sends a repair person, I will let you know the outcome. Please, someone, if you find a fix, let us know!
my question to any of you that are experiencing this issue; have any of you have the TV hook up to a power conditioner? Reason I ask is because it seems that there are a lot of people that have zero issues with their set and then there are people that keep experiencing the issue even after the TV has been replaced.
This is just speculation but maybe the reboot is caused by "dirty power", or that the TV is very sensitive to power spike maybe? I do not have a power conditioner but I did just plug the TV into another outset on another wall via an extension cord and the reboots stopped. For now at least.
I did plug the TV into my Kill-A-Watt meter and monitoring it for power spikes, my outlet fluctuates from 117.7 to 119.8 volts but since the boot loop has not reoccurred since I moved the outlet I cannot tell yet if its due to any voltage spike. Maybe, it took 2 months for the stock capacitors to wear out and now the TV is super sensitive to power surges
If anyone has a power conditioner and is still experiencing these boot loops / restarts please chime in in disprove my theory so I dont go out and waste my money on one.
oh BTW, this TV was advertised as having an average power consumption of 110w for the 75" model BUT my Kill-A-Watt reads 200w during dark scenes and 270 watts during bright scenes in "ECO" mode. Looks like Samsung is pulling a Ford on us
I've been experimenting with these reboots for a while as well. Tried messing with network connectivity, power/tv connections, misc settings. The one thing that I've found to have a noticeable change is turning OFF all the eco sensor and eco timers. I got the idea because it seemed to have issues during twilight. It's sad, as I really like it changing the brightness dynamically depending on the amount of light in the room, but since I turned off all of that, I haven't experienced anymore reboots. (I do still notice something that appears to be a power cycle when the TV is off, every day, at the same time... but I think that's something different.)
Can anyone else confirm/deny the eco settings having any affect on this rebooting issue?
My question to you guys: I have my set hung using one of these super flush mounts where the tv is completely flush against the wall (I even cut a hole in the wall behind the input jacks so that there is no gap). Its been about 85 to 90*F here in los angeles and the issues started since the temps got hot. Could this have caused the caps to go bad? the high heat and low ventilation behind the TV? What exactly causes a capacitor to go bad? is it high heat or irregular voltage? basically trying to figure out that in order to future proof this thing once the caps are replaced to either place a 120mm PC case fan on the back of the TV over the power board or if I should instead invest in a power conditioner unit?
As I said earlier in this thread, I have had the rebooting issue (TV turning on/off by itself) for weeks now with my Samsung Smart TV, model UN40F6400AFXZA. My TV was purchased on Amazon Dec 2013. After trying to troubleshoot the problem myself by updating firmware, etc, Samsung finally issued a service ticket and sent a TV repair person to my home regarding what he called the recycling issue. The repair guy, who was an independent contractor under contract with Samsung, said it is a known issue with Samsung (although they certainly don't admit it when you contact them for repair). He said the proof that Samsung knows it is an ongoing issue is that they sent him the parts before he even came to look at my TV to diagnose the problem. He said that the ribbon cable between the powerboard and the motherboard has been known to fail. If your TV is under warranty, just contact Samsung and they will replace the ribbon cable, along with the powerboard and motherboard if needed. If you are out of warranty, it would be really easy to replace the cable yourself if you can get the part. The back of the TV comes off easily with multiple phillips screws. On my model, the motherboard is on the left when looking at the back of the TV; the powerboard is on the right; and the ribbon cable connects them. He said often that the white ribbon cable looks blackened, which is a sure sign there is a problem. My ribbon cable was black to start out with not white..... so it wasn't easily visible to see if the cable was failing. For that reason, he replaced both the cable and the powerboard just to be safe. I have now gone 3 days without an issue, so I am hopeful this repair has solved the problem! He did not say the cause of the failure, but I will say that my TV is also flush mounted on the wall. I do, however, live in cold upstate NY, so I am not sure overheating would be an issue this time of year). Good luck!
Well at now I know I am not going crazy! I'm sorry so many others are having this issue but I too have a Samsung Smart TV model UN46F6350AFXZA that I purchased on Ebay new from an online electronics dealer. It worked great for about a week then started the power cycling thing, randomly turning itself off and on. I wrote to the Ebay dealer and he suggested I contact Samsung about the issue so I did since I really didn't want to box it back up and mail it back to him for a refund less a 15% restocking fee! After many hours and many sessions of firmware updates, diagnostics and unplugging and replugging it back in, they agreed to schedule a service call for Friday. Fingers crossed that the guy will bring the parts he needs to fix it and that the fix will hold. I notice that some of you were helped by the motherboard, powerboard or ribbon cable being replaced. If none of those works, I will mail it back to the Ebay deal and go to Best Buy where I should I have gone in the first place and buy anything but a Samsung!!
Funny you mention the motherboard because Samsung mailed my service guy all 3 items: motherboard, powerboard, and cable. He only replaced the powerboard and cable and said the motherboard is usually not damaged. Obviously, however, the motherboard has been an issue too if Samsung would mail those 3 items in advance to the repair person. By the way, it's been a full week and my TV is still working properly so I am hoping the cable and powerboard replacement have done the trick!!!
Thanks! good to know...
Hmmm... I just got a call from my repair guy who told me that it most likely was not the motherboard as well. He said that with my model they are having a new problem and he was ordering parts now, hoping to get them in by Thursday. We will just have to wait and see, I guess. Fingers crossed I don't have to keep going through this over and over again. Argh!
My TV - UN50F6300
This morning I woke up and turned on the news. A few moments later the tv reboots, I didnt think much of it as I was still waking up. Next it then started to reboot every 60 seconds on the dot.(yes I timed it) While going through all the menu options and preforming a factory reset, it then started to reboot every 30 seconds!!!
This was really annoying as I could now not complete the setup process.
So I turned to the Al Gore's interwebs...
After reading several threads with no real answers I found this one.
I unplugged my network cable a viola!
No more reboots!
Next I changed my network settings to wireless and wouldn't you know....reboot....reboot....reboot.
Turned wireless off.....no more reboots.
There seems to be an issue with the NIC in this thing.
Ill call Samsung today and see what they say.
Last edited by theinfamousdrew; 06-18-2014 at 03:13 AM.
After taking it apart I noticed that the cable serves two purposes: 1. the remote receiver/back toggle botton. 2. The wifi card.
I have come across at least one person claiming that samsung had a batch of bad wifi cards that could be causing this. Apparently the tech replaced just the wifi card to resolve the situation. I wonder if anyone else has noticed that.
I talked to a samsung tech who said it was either the power board or the main board. I was convinced something electro-mechanical was going like a connector loose because I could wiggle my tv sometimes to get it to stop (try this).
After taking off the back panel and checking all the connectors I went further and removed the outer bezel and found that the connector on the IR power control module was not fully inserted. That's the receiver module for the remote. The harness was installed with too much tension so I re routed the harness slightly and reseated the connector.
My tv is now fixed. Cost - 0$. Try it out.
This is aggravating. Last time I'm buying Samsung (have 2 TVs, a washer & dryer, and a fridge).
With the TV back panel removed for most of the day yesterday, I noticed that there was a connector on the main board labeled "WIFI". It's very small, near the upper right corner. I unplugged it from the main board and turned on the TV. So far, no more turning off-on every 5 minutes. The TV is behaving normally !!!
Fingers crossed it stays that way. Maybe I found a solution (bad wifi module that was interfering with the TV, making it restart every 5 minutes).
I then opened the it up, found the part number of the power board, search for it online and purchased one from China (where the majority of the TV's are made). Thought it would be easier than trying to find which, if any of the capacitors were faulty. I've had the replacement power board for about three weeks, was ok in the first week but now it's back to rebooting every 30mins or so and getting into a bad cycle. So most likely not the power board unless it has faulty capacitors...
As of tonight I've updated the unit to Firmware version 1120. I initially held off because I've had issues in the past with firmware updates killing NetFlix.
I also notice an update for my router (TV currently connected via wi-fi).
So I'm going to see what happens with both of these changes.. hopefully one of them would have worked.
If not, then I'm going to look at wi-fi and lan connections, possible unplugging the wifi chip, and search for lose parts... maybe even replacing the other boards.
Don't know if it was posted but this is one of the tutorials I followed.
At first, I thought it might have been something related to the hard drives It had.connected directly to USB ports. I didn't expect to have trouble because they are desktop drives with their own power supply.
Unplugging them didn't help.
I kept trying to isolate the cause and eventually discovered that it went away after I replaced the batteries in the remote. It seems that my remote was sending out some codes, just sitting there, which caused all kinds of things to happen, including the shutdowns.
One really annoying thing that it has done since day one is that, between commercials and when commercial break comes back to programming, the bottom of the screen darkens and then comes back to normal in a very inelegant way. It takes a long time and then the best way I can describe it is that it just isn't a smooth transition back to full brightness.
I've tried turning off all options related to both eco control of the screen and to clear motion. Nothing I've tried has helped.
Hopefully this is a thing that someone else has run into. Google pointed to this thread.
This problem is exactly the same as my problem
I purchased a bush 55" smart TV from Argos' it rebooted every 5 minutes apart from when i disconnected all internet activity.
I took the tv back for replacement and the new one was exactly the same.
Took that back for a slightly different model An Hitachi 55 inch slightly more expensive when i un boxed it' it looked exactly the same apart from the on screen logo' plugged it in and its exactly the same.
So pissed off how can you sell a tv thats not fit for purpose i'm livid
smart TV yes right
if u want to get rid of it u have to change the main board """"BUT"""" there is another way which will cost 0$ for u !!!
easily tap 4 or 5 times in the """back middle top""" of the tv when the problem occurs and it will get out of the rebooting loop !!!
the reason is there is a loose connection in the main board and it cant be founded easily , so the repair guys always change the main board instead of finding the loose connection
it is more than 2 months that I do this and always it works.(almost 1 or 2 times in a week)
its better than spending 120$ (in my country : Iran) to change the main board .
My two year old Samsung UN60F6300 tv has started rebooting and flashing "Smart Tv" randomly now too.
Samsung wants $60 to come out and diagnose it.
Or, I can spend $419 for a Samsung Repair Plan from them. After reading this thread about the tv, I'm not sure I want to "risk" $419 since this problem appears to not always be fixed by the Samsung Repair Techs.
I'll never buy Samsung again......
I was getting ready to have Samsung come out. They wanted $60 to diagnose it, and $125 for the mainbaord and $175 to install it. Or I could've spent $419 for the Samsung Repair insurance, whcih would cover all the repair costs plus the $60 diagnose fee.
Not sure how this mainboard became "disconnected" since this 2yr1month old tv has been hanging on the wall, undisturbed since I bought it.
I can't imagine how many other people have had this issue, as well. Samsung should pay for this fix, even though it's out of warranty. =The tv is only 2 years old and has hung on a wall since I bought it!- UGH!
I have a used Samsung F6300. Anyway...my TV started doing the on/off/on/off/on/off cycling problem. Found this post on Google. I was searching for clues for the the power supply or motherboard.
Anyway....I noticed on mine. If I hit the 'menu' button on the TV remote....problem would kick in. TV was doing this 4-5 times a day.
I took apart the remote thinking maybe it had that goofy buildup on the circuit board that forms in remotes. There was none.
That said, very near the 'menu' pad on the circuit board was a solder joint that had left over rosen.
Cleaned the board with rubbing alcohol....particularly the area with the excess rosen.
TV has been working perfectly for about 30 hours.
It appears the excess rosen contaminated the remote circuit board some how....and was causing some kind of bizarre remote / tv cycling problem.
The Samsung remotes are kind of tricky to get apart. Cost is -0-. Worth a try.
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