How to Active Serial Console on UN46B8000

[juusso]

on post-Feb firmwares console is dissabled. You have to downgrade fw to have it working.
Your u-boot is deleted too. It is exact what latest firmware does. Write your fw version. When last did you update your fw?

P.s. Why do you need shell over exlink? You could activate telnlet with TelnetEnabler as trojan...

[juusso]

Silly question... Did you extract games from archive before to copy it to TV?

[juusso]

Do you run TelnetEnabler from Children in ContentLibraryManager or from Games?

First you need enable (if not already) copy/remove feature in Content Library Manager.

* Enter Service Menu ( quickly push

[MENU] [MUTE] [POWER] on your remote control )
* Change setting (Control -> Sub Option -> Wiselink Write -> On )
* Download SamyGO Telnet Enabler Trojan.
* Unpack and copy telnet-enabler folder to root USB and plug in to TV.
* Enter Content Library Manager -> Select USB -> Select Children category.
* Use Copy function on TV to copy Telnet Enabler as Trojan content to TV internal flash.
* Return back to main manu in Content Library Manager and select again Children but from TV flash contents this time.
* Run Run this Telnet Enabler to enable telnet access (or open the gates ).

.

BTW, if you do not see telnet enabler, but you see Trojan, choose it, select -copy all.
You find on TV all games copied (included telnet enabler)

[juusso]

UDN error was with Game version of telnet enabler.
I wonder what error was with Children version. You have to extract archive as is, not telnet-enabler subdirectory.
Is your yellow button active, do you see "copy to TV" or something else ?
Error occurs if Children version is loaded from ContentLibrary-Children, not from ContentLibraryManager-Children.