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rick wiseman

Annoying pop-up messages on my lg 49sj800v smart tv

Question

I have owned this tv for a year and pleased with it ... until about a month ago. I now have constant repetitive messages in top right hand corner of screen saying 'Unknown device disconnected' or 'wired network is connected' or wired lan cable is connected' and it's driving me crazy. I have tried the lg live chat technical support and they were not aware of the issue but I've seen the same problem discussed on US forums and here too. Nobody seems to be able to have a solution. I have unplugged all external stuff - Virgin V6 box, Wii, wired internet, etc and it still happens. Help!!

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@txydas My lg49sj800v 's trouble is like the ones commented here, i. e. 1. rare message saying unknown device disconnected (it is not annoying and repetitive), 2. wifi and screenshare usually are not working. my tv name is not  often appeared on mobile phone during screenshare, and wifi has the same fault. 3. occasionally, the broadcast dtv picture paused for 2-3 seconds and then resumed in fast motion mode. 4. during the faults, the the tv does not respond to magic remote controller.

Do you have the other trouble I wrote here? do you think my trouble would be removed by replacing the wifi module?

thanks in advance.

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Hi

Iinitially i had the sane problems as as you do. I was not using the. Wifi as next to the router. As the module is quite inexpesive it worth tryng. I bought mine from uk, second hand. Another person from brasil reaired his tv with 10 dollars. It all depens on your location.

After a month , and following replacement of the wifi module, my tv is working fine.

 

 

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In my case, it has solved, left the TV running straight for 3 days, and the problem has not shown up. Then I sold the TV as I don't trust LG anymore.  Anyway, it's quite an unexpensive and easy fix, worth a shot. 

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I just replaced the WiFi module yesterday and it solved the problem also. We will not buy another LG tv again as this tv was a replacement for an LG that went bad while under warranty. This tv was fine until the last update. We feel LG should have acknowledged and sent out WiFi module replacements but they keep saying they can’t find a connection between the two. Granted some people have more issues and they offer service call but it costs. I also realize not everyone can change out the module. The hardest thing was taking out all the screws out of the back of the tv.

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I can confirm that I experienced a similar issue on my 55UJ6300, and apparently changing the WiFi RF module worked. I was not using WiFi at all, since I had my TV connected by Ethernet cable to the router, but around November 2018 I started seeing the "Unknown device disconnected" pop up messages. Some days it would happen more often than others. Sometimes a "Wired cable connected" or similar message would also show up, and sometimes a bigger black notice would show up saying "Network connection lost" or something similar. Sometimes the Ethernet connection would actually stop working after this. I also started seeing the 2-3 second pause followed by fast motion to catch up every once in a while. This would happen for example when watching YouTube or Netflix on the TV apps. Netflix would sometimes require me to get out of a movie and back to it for it to resume playing.  Turning on Store Mode would hide the pop up messages, but I am sure they were still there only hidden, since the othe symptoms would persist.

As someone in this thread suggessted, I opened the back of the TV, looked at the RF module, and found a similar one on eBay for less than 10 dollars (here in the US). The module was the same though the revision was a bit higher (1.1 in mine and 1.4 in the one I found). I chose it since I figured maybe a newer RF module would work for a longer time, or had the issue fixed so that it will not happen again in the future after a while. I was able to successfully switch my module with this one, and even though I have not tried WiFi directly, everything I needed seems to be working, and all the issues have disappeared for now. It has only been around 3 days, but I am hopeful that the issue will not come back.

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For me so far so good. There is one person over on the lg support website that has Cher WiFi module twice,her motherboard and some other parts and still has problems. Now LG tells her it may be the screen. I can’t believe they just don’t let her get another tv. She said she would settle for store credit. Most of the problems happened after the updates. Hopefully the problem is over now.

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On 2/15/2019 at 12:00 PM, aqaHadi said:

@txydas My lg49sj800v 's trouble is like the ones commented here, i. e. 1. rare message saying unknown device disconnected (it is not annoying and repetitive), 2. wifi and screenshare usually are not working. my tv name is not  often appeared on mobile phone during screenshare, and wifi has the same fault. 3. occasionally, the broadcast dtv picture paused for 2-3 seconds and then resumed in fast motion mode. 4. during the faults, the the tv does not respond to magic remote controller.

Do you have the other trouble I wrote here? do you think my trouble would be removed by replacing the wifi module?

thanks in advance.

Hi, I believe, by replacing the wifi module, will solve most of the errors - as  i had the same problems-, if not all.  Do replace the wifi module and let us know.

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Hi.  I posted this original question and with the advice given I have resolved the issue of pop up messages and magic remote not working. I haven't replaced the wifi module as I don't use it but I have disconnected it via the settings programme and all is well and has been for some time. That's the solution. Oh and don't buy lg again. Where were they in this their own forum! 

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4 hours ago, rick wiseman said:

Hi.  I posted this original question and with the advice given I have resolved the issue of pop up messages and magic remote not working. I haven't replaced the wifi module as I don't use it but I have disconnected it via the settings programme and all is well and has been for some time. That's the solution. Oh and don't buy lg again. Where were they in this their own forum! 

This is a user-to-user forum, not a LG platform.

As for the WiFi card issue, well the possibility is a bad batch of a product probably not made by LG.  It would be good to know the details of the modules that people have had to replace so that we can get some idea of what is going on.

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39 minutes ago, George Hofmeister said:

This is a user-to-user forum, not a LG platform.

As for the WiFi card issue, well the possibility is a bad batch of a product probably not made by LG.  It would be good to know the details of the modules that people have had to replace so that we can get some idea of what is going on.

Please find attached the pictures of the faulty rf module. Since is a common fault on many tvs, please make arrangemnts for a replacement. I may send you my address if requested.

Thanks

Thomas xydas

15504131259333906115294270712348.jpg

15504131902906834120693620156742.jpg

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I am not sure what you mean. My WiFi module worked fine and I never had a message on my tv screen about an unknown device until the latest software update.  I don’t take to blaming manufacturers lightly and never have done so before. I only came to this site about a month ago looking  guidance when I wasn’t finding  it on the lg support site.  The things that were suggested over there didn’t work and we were told they were working on a fix that didn’t come. Others with the problem tracked it to the WiFi module so I went there also. This is lg tv is a replacement for one that went bad while still under warranty. 

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@txydas Hi, thanks.

I tried to find the item on ebay. But I realized that here, in IRAN, sanctioned by Ultimate Satan Administration (USA), it is a tedious task or even impossible to buy such a thing through ebay or amazon or ... , because a TV WiFi RF module may be used in an imaginary nuclear warhead, according to them. LOL!

anyway, per the experiences reported in this forum, I tried to see what the module is. At the first glance, and more and more scope, no obvious fault was detected. everything seemed to be OK. So I just disassembled the module and the ribbon cable. I experienced that the TV had little or no sense to magic control. So, the module was not a thing that could be ignored. So I took some photos and reassembled them again after the only common remaining task, i.e. cleaning the module and connecting cable both at the module's and mainboard's header by a spray solvent.

And now, it is for 3 days that the TV has operated flawlessly. Everything is OK; Magic control, WiFi, Screenshare, No message, No pause or delay in the stream display ... I wonder what the bug was and wonder whether it would be coming back? Who knows? It was recommended to me to substitute the TV to another model or brand. It is not my decision for now.

So, It may be helpful if the users, who have replaced the module, say in please that if any similar tasks had been already done before replacing?

photo6003670960873516804.jpg

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Some people mentioned that turning of Wi-Fi in the Settings menu helped them. I just wanted to say that, even though that makes sense, most LG TVs don't have a menu setting to do that, only a few do. So this is an option for only some people.

I didn't try removing the module; that may have worked for me since I wasn't using WiFi nor any magic control. I didn't try cleaning it up or anything either. I guess it could be an issue of a lose connection as well, but I can't really confirm that. I do know that is has been a week now with the new module and it is still working well, no issues in sight.

Here is a picture of my old module, in case it helps.

20190219_205703.thumb.jpg.bc20c51604ceda9f6823119d77fd155c.jpg

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