Reo0o
Reo0o
I tried all steps Rooted my TV Installed Dev tools rebooted my tv then turned key server on Entered keyphrase ( key sensetive) in Dev manager app 
> it's local IP address (192.168.1.120) I connect it using wifi
> How did you make the dev account? I tried to make it but couldn't as this feature discontinue many years ago as!!