Explanation chambers level 8 is turn your phone 180 degrees so that the stone fell on the floor and take a crowbar and hit the wall continually damaged and perforated to become a door to enter.
Explanation chambers level 9 is pressing the two red button by following guide on the door numbers.
Explanation: Press the buttons in the following order:
left button 2 times
right button 4 times
left button 5 times
right button 3 times
left button 1 time
right button 2 times
and the door will open.
Now continue to the 100 Chambers level 10-11 explanation, or back to the 100 Chambers level 6-7 Explanation