Rest In Peace, Somebody - S4-E10
Character mistake: Cameron's attempt to assassinate the governor fails because McGarrett has everyone wear bullet-proof vests. It's been established that Cameron is brilliant, a top-of-his-class ex-cop and a crack shot. And he's been sending death threats, so he knows they'll expect him. Yet he fires at the governor's back and is shocked that the man doesn't die. Anyone with his expertise would have anticipated the vests, and aimed for the man's head. (00:48:20)
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)
Odd Man In - S4-E14
Continuity mistake: At the end, Filer puts his jacket on, and the left side of his shirt collar is sticking out above the coat. Every time the camera angle changes, though, the shirt collar is neatly tucked in. (00:49:00)
The Ninety-Second War (1) - S4-E16
Factual error: An injured McGarrett is trapped in an overturned car, which emergency workers flip over before cutting him free. No rescue crew would ever do this: such violent movement could kill the patient. It's crucial that crash victims be extricated without causing further trauma: McGarrett would be freed leaving the wreck exactly where it was - upside down. (00:07:25)
The Ninety-Second War (2) - S4-E17
Continuity mistake: When Vogler stands in the doorway talking to Danno, the position of his arms alternates with each change of shot, from down at his sides to propped at 90-degree angles on his hips. (00:42:05)
Continuity mistake: McGarrett leaves the parking lot driving a two-door Ford Mercury, but arrives at the crime scene in a newer, four-door model. (00:07:25)
While You're at It, Bring in the Moon - S4-E19
Continuity mistake: McGarrett approaches the Governor's office building wearing a light blue suit, but enters the lobby wearing a dark navy blue one. (00:27:05)
Revealing mistake: Near the end, McGarrett's boat is preceded by the wake of another boat that isn't there when the angle of the shot reverses. The wake belongs to the vessel carrying the camera crew. (00:46:45)
Revealing mistake: When the underwater camera breaks the surface in what is supposed to be open ocean, the domed roof of a Hawaiian aquatic theme park building is visible in the background.
Didn't We Meet at a Murder? - S4-E22
Character mistake: When Chin Ho reads Wellman's license plate number to the police dispatcher and repeats it to confirm, he recites a different number the second time. (00:30:05)
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.
Death is a Company Policy - S5-E1
Continuity mistake: The Five-O computer here lists McGarrett's name as Steven J. McGarrett. But in "A Gun for McGarrett," his middle name is revealed to be Aloysius. Strange that the computer doesn't know the name of its own department's head.
Death Wish on Tantalus Mountain - S5-E2
Visible crew/equipment: On top of the mountain, miles from any artificial light source, several studio lights and reflector panels are visible in the side of McGarrett's shiny black Mercury. (00:14:45)
Death Wish on Tantalus Mountain - S5-E2
Character mistake: McGarrett tells Pereno that the sabotaged race car went over a cliff. But the car crashed into a wall, with no cliff in sight. It's very unlike Hawaii's top cop to get the facts wrong - especially when he was an eye witness to the event. (00:44:00)
You Don't Have To Kill To Get Rich -- But It Helps. - S5-E3
Revealing mistake: When the shot pans to its feet, the dead body floating in the water can be seen to wiggle its toes.
You Don't Have To Kill To Get Rich -- But It Helps. - S5-E3
Revealing mistake: We see the body of Karen Bell 30 fathoms underwater, with her feet tied to a concrete block. But just before the shot cuts, the "corpse" wiggles its toes.
The Jinn Who Clears The Way - S5-E5
Factual error: Danno, who's been a cop long enough to know better, reports to McGarrett that the lab has determined Wong's blood type to be AO. Blood is typed as A, B, AB or O. There is no type AO.
Revealing mistake: A loud, fierce gun battle rages between dozens of 5-0 sharpshooters, Army MPs and the desperadoes inside the payroll office. Amidst all the high-powered rifle fire, a woman in a blue dress strolls casually by in the background, well within bullet range, and never even turns her head to see what all the ruckus is about. Gee, you'd think colossal shooting wars broke out on her block every day. (00:13:30)
Continuity mistake: When the police cruiser with Danno aboard leaves HPD HQ, it's a 1967 Ford Galaxy 500 with wind wings. But in the next shot of it on the Honolulu streets, the car is a '71 or '72 model with no wind wings. (00:43:30)
Continuity mistake: Aboard the boat, when Danno draws his gun, both his suit and his tie change colors and patterns completely between takes.
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.