I need help: TV LN32D550 downgrade firmware

[DZR]

Hello, people

First of all, I apologize for my bad English. I am Brazilian and I do not know the English language as well as it should.
So let's get to my problem: I had the misfortune to update the firmware of my TV and now she no longer recognizes RMVB files, as it did before the update. I remember that the firmware version was in 1007 and now with version 1015. How would I do to reverse this firmware? Or at least some who still read RMVB files.
Well, I have already suggested to convert my videos to AVI format, but I have over 700 videos in this format and I think impossible to convert all ...
As I have some problems with the English still have not read the forums enough to know if there is already a solution to my question and I thank you for reading my topic. And if anyone can help me, thank you even more!

Thanks again for everything. And let a special thanks to Google, the translation tool. Without it, the above will never exist ...

[juusso]

do you have this "earlier" firmware file somewhere on your pc?

[DZR]

No, man...

So I'm looking for help here ... I think I screwed

[LeoSpider]

hi!
i've the same model with version 1005 thar recognizes rmvb via usb too maybe i can help but i need instruction how to dump my firmware for you

[DZR]

hi!
i've the same model with version 1005 thar recognizes rmvb via usb too maybe i can help but i need instruction how to dump my firmware for you

Thanks, man!

[LeoSpider]

hi!
i've the same model with version 1005 thar recognizes rmvb via usb too maybe i can help but i need instruction how to dump my firmware for you

Thanks, man!

so, how we can start ? which softwares do i need to do this?

[DZR]

hi!
i've the same model with version 1005 thar recognizes rmvb via usb too maybe i can help but i need instruction how to dump my firmware for you

Thanks, man!

so, how we can start ? which softwares do i need to do this?

Man, sincelly, I don`t know...
Somebody help us?