Did this occur suddenly? Can you still control your TV with the remote? If yes, maybe you accidentally programmed the Dream-mode of the remote control.

Battery is empty when its blinking twice ...

hi

It can be the remote buttons can not get in contact with the printed circuit board.

You fix it by gluing tin foil on the button back,
While you are at it do it on TV and Power Button aswell.

I use double-sided tape for attaching foil.

Use a credit card to separate remote, then you get no marks into the plastic from a screwdriver.

By sliding the card around the crack it will go apart.