HT-E5500 - Downgrade

[maminek92]

Hello!
How i can remove cinavia from my br ?
The DVD has 1014 with cinavia ...

I try change DNS and update but didnt work... i think 1012.5 didnt have cinavia. Probably i have 1012.5 in my pendrive.
http://www17.zippyshare.com/v/90766876/file.html - this is 1012.5 probably for my ht-e5500
When i downgrade my firmware i lose warranty?
Sory for my english.

[maminek92]

Up ...

[maminek92]

Up
Can you help me?

[maminek92]

Up