aqaHadi

@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?

@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.