how can i stick it tightly? normal tape don`t working...Take a screwdriver and stick it in the aluminum ring. Then push it hard and counter clockwise out of the host.
i don`t have those incision ..It usually has two very small incisions on opposing sides from the inside, which can be used to unscrew it easily with a screwdriver and liberal application of force
Flat head screw driver, push REALLY HARD into the counter clockwise direction, once it loosens up, you can unthread it with fingers easily.