SamyGO

You can all of those.
But connection moue&keyboard has NO EFFECT to samsung programs/widgets like youtube browser... But you can use Web Browser with it.

You can read wiki pages about flashing...
http://wiki.samygo.tv/index.php?title=S ... cher#Usage

I just wanna ask something. On that link you paste, under "Usage", noobs like me in this, only need to do that to get patched firmware? No need for advance?

You only needed to apply things under "Usage" and go.
(If you have CI+ device than you needed to read this http://wiki.samygo.tv/index.php?title=F ... 2B_devices )

There's only one thing I don't understand.

patch it using SamyGO Firmware patcher as "python SamyGO.py <your extracted firmware directory>"

Does SamyGO.py needs to be in the same directory as my firmware or should it be in python installation directory? I'm confused.

No It's not required.
For windows, you can start like that:

I still don't understand!
My directories are
Python 2.6--> E:\Programs\Python26
SamyGO.py-->E:\unzipped\Samsung LE40B652\
firmware-->E:\unzipped\Samsung LE40B652\firmware

So how exactly do I start this? I open Python26.exe, right? Then what?

I advice you that don't update/use hacked firmware if you don't know such a basic command.
Because if something goes wrong, you will have bricked TV and It looks like you cannot revive back.
If you are persistent about modify your FW, than drag the firmware folder and drop to SamyGo.py file.
That probably will does the job.

After draging the firmware folder to SamyGO.py file I get this for an second

I apologize for double post, but is this right like this? (click on pic to see big picture)