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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
Hatchling
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
Member
sstalker's Avatar
32 posts
Joined Dec 2005
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
Canon 300 EZ, 380 EX, Vivitar 283, 285HV

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Ryzz
THREAD ­ STARTER
Hatchling
9 posts
Joined Feb 2006
Jan 11, 2009 23:15 |  #3

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

Steve - Toledo

Yep, have checked that, thanks though.




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kiwichris
Goldmember
Joined Oct 2008
Milford Auckland NZ
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?


It's not what you call your own that's important, who calls you their own is. 6D and glass
http://www.flickr.com/​photos/chriswaynzpics/external link

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Bob_A
Cream of the Crop
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Joined Jan 2005
Alberta, Canada
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
SmugMug (external link) | My Gear Ratings | My POTN Gallery

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

Bob_A wrote in post #7057302external 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
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
Canon 400mm 2.8L Mark II:lol:
Canon 70-200mm 2.8L 50mm 1.8Sigma 15-30mm.

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Ryzz
THREAD ­ STARTER
Hatchling
9 posts
Joined Feb 2006
Jan 23, 2009 16:26 |  #8

Bob_A wrote in post #7057302external 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
Cream of the Crop
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Joined Jan 2005
Alberta, Canada
Jan 24, 2009 15:27 |  #9

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


Bob
SmugMug (external link) | My Gear Ratings | My POTN Gallery

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NLaw
Hatchling
1 post
Joined Jan 2009
Jan 30, 2009 15:09 |  #10

kiwichris wrote in post #7057091external 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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