UE39F5300 bricked

[fulgen]

I have a ue39f5300 tv model with 1118 version and I applied the secuence explained "Get ROOT access on F-series without develop account". After that it was posible to access tv via ftp an even telnet. Once in telnet there was no login neither user, and I only could access to /tmp directory. I tried, I don't know why, to execute "su -" and it start to try to mount any partition a it report serveral errors. After that, the connection was lost and the TV became bricked. I tried to reboot after serveral minutes unpluged from power and nothing happens but a constant blink in red power led. I tried also the secuence Exit (12 sec) and after Left and Enter but nothing wake up the TV

Any suggestion ?

Thanx

[fulgen]

Thanks to everybody

The TV was repaired under warranty by replacing the main board. Now is working again but I don't have idea what exactily happened