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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 11 Jan 2009 (Sunday) 21:42
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Need Help - Canon 40D Built-in Flash not working

 
Ryzz
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9 posts
Joined Feb 2006
     
Jan 11, 2009 21:42 |  #1

Hey All,

Hoping someone might of run into this problem before. I've got a Canon 40D running firmware 1.0.8, and I also have a 580EX Speedlite. 99% of the time I do flash work, I use the speedlite. However recently I've tried to use the onboard flash and found it wont work.

When I got into Flash Control Menu and select Built-in flash func. settings, I get the error message "This menu cannot be displayed. External flash is attached". Now to state the obvious, my Speedlite is NOT attached and the flash connector is clean, nothing is bridging any of the flash terminals on the camera etc.

I have just upgraded the firmware from 1.0.5 -> 1.0.8 in hope this might magically fix it, but no such luck. Before I go back to Canon for Warranty I thought i would see if anyone else has come across this problem before.

Thanks in advance




  
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sstalker
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Location: Toledo
     
Jan 11, 2009 22:45 |  #2

CFxx turned off??

Steve - Toledo


20d, 50d
EF 50 1.8 MK I, EF 28-70 3.5-4.5, EF 70-210 4.0,
EF-S 17-85, EF 100 Macro 2.8
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Ryzz
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Hatchling
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Jan 11, 2009 23:15 |  #3

sstalker wrote in post #7056677 (external link)
CFxx turned off??

Steve - Toledo

Yep, have checked that, thanks though.




  
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kiwichris
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Jan 11, 2009 23:51 |  #4

I have read before there is a button on the hot shoe that can stick, possibly it needs freeing up?


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Bob_A
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Jan 12, 2009 00:38 |  #5

It sounds like the switch under the hotshoe is stuck. Any chance you installed a plastic "hot shoe protector" into the hot shoe? If the little switch stays depressed the camera thinks a flash is mounted and the on-board flash won't pop up.

If it's just broke it's either off to Canon or replace it yourself:

http://www.conraderb.c​om/flashrepair/ (external link)


Bob
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Ryzz
THREAD ­ STARTER
Hatchling
9 posts
Joined Feb 2006
     
Jan 12, 2009 01:15 |  #6

Bob_A wrote in post #7057302 (external link)
It sounds like the switch under the hotshoe is stuck. Any chance you installed a plastic "hot shoe protector" into the hot shoe? If the little switch stays depressed the camera thinks a flash is mounted and the on-board flash won't pop up.

If it's just broke it's either off to Canon or replace it yourself:

http://www.conraderb.c​om/flashrepair/ (external link)

Thanks Bob, this sounds like the best lead so far. I'll try this out.

Cheers
Ryan




  
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saggy9999
Senior Member
395 posts
Joined Jun 2005
Location: Linlithgow, Scotland
     
Jan 12, 2009 13:33 |  #7

just repaired my old 20d using that ^^ method and it now works a treat again
just in time for selling it ;-)a


2 x Canon 1D Mark II, & 40D
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Ryzz
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Hatchling
9 posts
Joined Feb 2006
     
Jan 23, 2009 16:26 |  #8

Bob_A wrote in post #7057302 (external link)
It sounds like the switch under the hotshoe is stuck. Any chance you installed a plastic "hot shoe protector" into the hot shoe? If the little switch stays depressed the camera thinks a flash is mounted and the on-board flash won't pop up.

If it's just broke it's either off to Canon or replace it yourself:

http://www.conraderb.c​om/flashrepair/ (external link)

Just an update, as Bob suggested, the hotshoe pin/switch was jammed, hence the camera thinking an external flash was fitted. As soon as I released the pin with on-board flash worked correctly.




  
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Bob_A
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Jan 24, 2009 15:27 |  #9

Great news! Hopefully it'll be a long time before you have to touch it again :)


Bob
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NLaw
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Joined Jan 2009
     
Jan 30, 2009 15:09 |  #10

kiwichris wrote in post #7057091 (external link)
I have read before there is a button on the hot shoe that can stick, possibly it needs freeing up?

Same thing happened to my 40d and i tried freeing the switch as was suggested and it worked, Stoked!
Just flicked the metal tab bits under the hot shoe lip a few times and that did it.
Thanks for the help.




  
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Need Help - Canon 40D Built-in Flash not working
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