Follow the White Brick Road - S4-E23
Visible crew/equipment: Aboard the smaller boat that comes out to pick up McGarrett from the tug, you can plainly see a cameraman shouldering his camera and standing up to film the tug boat.
Air Cargo -- Dial for Murder - S4-E7
Visible crew/equipment: In the office, when McGarrett hands Chin Ho the murdered cop's notebook, the microphone shadow can be seen moving across the set wall at the upper left of the screen. (00:14:15)
Air Cargo -- Dial for Murder - S4-E7
Visible crew/equipment: When the bad guys enter the print shop, the boom shadow moves across their heads and onto the wall behind them. (00:11:10)
Air Cargo -- Dial for Murder - S4-E7
Visible crew/equipment: The crooks drive off in their blue '56 Chevy, capturing the reflection of a row of studio lights in the car's shiny side panel as it pulls away. (00:34:15)
A Matter of Mutual Concern - S4-E11
Visible crew/equipment: As the mob bosses gather for their summit meeting, one of their big black Lincoln Continentals reflects several banks of studio lights when it comes through the security gates. (00:16:40)
Answer: He was fired. He never really appreciated his character. He felt Kono was portrayed as a big dumb Hawaiian and that the stereotype was racist. He also felt underutilized. He was fired after a heated argument with the show's publicist regarding his character. It seems there's not much details given regarding the incident or the firing, so it's seems possible he upset the show's producers as well.
Bishop73
No he said something derogatory about one of the Jewish producers that's why he was fired.