SamyGO

TV is searching for WiFi and after almost minute closes rotating circle without any info :/
Then you can only repeat or cancel network settings :/
Problem was on firmware 2017 so i updated to 2018 but problem not resolved :/

solution :
put tv in stand by mode ( turn off with remote )
push info > menu > mute > power ( it is secret or service menu ) ( or Mute - 1 - 8 - 2 - Power)
be careful, don't change others things
go to: Control > sub option and change "wifi region" and chose A
go back
go to: SVC > SVC reset

Already tried. No result :/
Changed also firmware backword to 2009. No efect :/
Anybody knows how to check WiFi is hardware failure or is it some kind of software fu*kup by updates?

probably your wifi module has broken down. I also have got 55 ES7000 and wifi stopped working just after the warranty had finished I connected the telly via LAN cable and so far it's fine.

Don't have LAN cable in that room. Isn't that strange that all of them broke down just after warranty?
Anybody else?

On my TV UE55ES8007 the same problem - does not see Wi-Fi.
Official firmware - T-ECPDEUC_2020.0.
Not immediately noticed. Guess it happened after some updates.
What to do? How to recover?

KruS wrote: What to do? How to recover?

I would suggest DOWNgrading...

Already tried to version 2009 and other

I still helped the message kallipso - viewtopic.php?p=83375#p78872
It is necessary to carefully perform each action described.

My E8000 WiFi/BT hardware died twice in one year. Second time I asked my money back.
E8000, ES8000 and ES7000 have the same WiFi/BT hardware and its a known fact that it fails.

Unfortunately it looks like my F9000 is developing the same problem... BT remote does not respond always (I'm not using WiFi so I don't know if it still works).