Please help to restore the old software to LE40B551A6WXXH

[gacekmb]

We warmly welcome

First of all, sorry for my bad English.

Please help to restore the old software to LE40B551A6WXXH
I made a cable from: wiki.samygo.tv and stayed at this stage:

After entering the debug console:

[SERIAL INPUT MANAGE] 1-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] 2-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] 3-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] 4-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] 5-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] ENABLE input serial!!

and still the same ... 1198282 key after typing the same thing still pops up and I can not
move forward in the service menu but still:

[SERIAL INPUT MANAGE] 1-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] 2-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] 3-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] 4-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] 5-th ENABLE Magic serial input match!
[SERIAL INPUT MANAGE] ENABLE input serial!!

I think I've done everything according to what I read:

Enter Service Menu (quickly push

[MENU] [MUTE] [POWER] on your remote control)
Change setting for your RS232C interface to "debug" (Control -> Sub Option -> RS-232 Jack -> [Debug | UART | Logic]
etc..

Please help or cable where it is all nicely described as a return to the previous wersii, or
Advise me what I do not like the current TV firmware are:

TCHL5DEUC-2010.1

I wanted to do, as in: Roll back LExxB5xx, LExxB62x, UExxB6xxx

But I can not call the function: Activate "? Hannele Import / Export" menu.

Please help me.