Just sent in the flash unit to be repaired, and I got it back and it is still malfunctioning, just not as bad. When I go into custom settings to put the flash on REMOTE (to shoot in commander mode on my D300), It always locks up once I put it on remote. I can put in on Master and Master RPT just fine, but it always freezes when I put it on Remote. Also, when I put it on SU-4, it just starts firing away, and I can't get it to stop without removing the batteries.
I'm bummed, I really needed this for a shoot today. Should I just call the company that repaired it?
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sounds like a short in one of the circuit boards, most likely one or seveal of the ribbons and boards will need to be replaced to correct the problem. Send in for repair expect to pay up to $200 for a Nikon factory overhaul
I have 2 SB-800s. When batteries leaked in one Nikon took forever to fix it, so they eventually sent me a refurb. Then they sent my original back. Which was great, until recently it developed this problem.
Another possibly related side effect is the modeling flash does not burst -- it only fires a single (very bright) flash.
The capacitor argument sounds likely. Coincidentally I also had a problem where the flash would fire sporadically -- but that was due to scuz buildup on the contacts.
The Sb800 and the Sb900 is compatible . Can you tell me more of what the problem is .
There is no frim ware for the flash . The NIKON SB 900 FLASH SHOE IS THICKER AND MAKES BETTER CONTACT . THE NIKON SB800 SHOE IS LOOSER AND NEEDS TO BE ADJUSTED
When you attach the flas to the camera can exidentli fire. This is normal, and manufacturer recomendation, turn off the flas unit before attach or deattach, prevent this fireing. Fireing when you turn the flashead is not normal. Probably the mounting foot of the flash unit can move in the hotshoe, breaking connections between the connector pins, causing exidental fiering. Always lock the locking lever of the flas, wich can prevent this unwanted movement. Also chek the hotshoe on the camera, wich should to have a "leaf spring" keeping the flash unit steady.
I had that same problem with the SB600 and the SB 800. Solutions; get a new one.
After about a year of usage the sb600 started giving me that problem. It flashes but it does not sync. It still works as a remote unit, but not mounted on the camera. The SB800 just went to a coma last weekend. No sync at all, not even as remote unit, no strobe function, just a bright flash, when triggering the test button with new fresh batteries, it flashes at max power once and takes around 7 seconds to recycle. No multiple flashes at all. I had to buy a new one.