Add BF3 game files to origin

hello all, i recently downloaded BF3 LE version so that I could play right away when i key on release date (earlier today) but i cannot for the life of me work out how to add them manually to origin. is it even possible?
every time i add them to the BF3 folder origin likes to automatically delete it. there’s no option like there is on steam to verify the game files and then download as needed, it instead takes matters into it’s own hands and try to redownload the whole thing again.
sorry if this is the wrong forums, but i don’t fancy waiting forever for origin to redownload the whole game when i have the files sitting right here!
Answer #1
Just do like wt we did for beta version..
Open origin n download ur copy..
When it starts downloading..
wait for 2 mins(important) n then cancel the download or close the origin completely..
Goto the downloaded folder C:\Program Files (x86)\Origin Games\Battlefield 3 (<- Folder name cud be different..)
Just paste all ur downloaded contents in the Battlefield3 (or wtever name) folder..
Replace if it ask..
Now open origin u ‘ll find ur copy ready to play..