EOS

[Diane74]

Hello all!

Allow me to begin by saying that I don’t have a clue about what I’m doing, so please be gentle!

I bought a lovely 77d a couple of years ago. The guy in the shop kindly set everything to auto and I’ve had no trouble since. I got the camera with the kit lens and I bought an additional 70-300mm lens which I use more often. 

Yesterday, I was at a horse show, happily taking shots and then I took it back out of the bag and it just wouldn’t work. 

I changed the memory card, took the battery out and then back in and removed and reattached the lens, but all to no avail. 

If you could give me some guidance I would be very grateful. Thank you! 

[wq9nsc]

Diane,

Welcome to the site.

Is the camera coming on (display on near shutter release displaying information such as battery level icon) or is it completely dead?  Anything showing up on the rear display when you turn on the power switch?

Rodger

[Diane74]

Hi Rodger,
Thank you for replying.
Yes, the camera is turning on. It shows full battery, says A in the ISO box and 999 in brackets and WiFi off. That’s it.
Sorry, I probably should have put that in my post.
Diane

[BurnUnit]

Does the camera seem to power-up as normal? Or do you just mean that the shutter won't release? Are the LCD displays working as they should? Does the 77d have any sort of a "lock" button that might be keeping the shutter from workig?

Are you using a full size SD card or a micro SD with a card adapter? Have you attached any third party accesories like a battery grip or flash or a non-Canon battery?

Edit- Rodger must have had more coffee this morning than I did...

[Diane74]

Hi BurnUnit,

Yes, power seems normal and all displays look normal to my uneducated eye!
When I press button to take a shot, in any mode, nothing was happening.
But.... just to reply properly to you, I tried again and now it’s taking photos! Which is great! But, I didn’t change anything and it certainly wasn’t playing ball yesterday so any ideas as to what I might look for in the future would be great as I missed being able to photograph what I needed to yesterday ☹️

[Diane74]

Oh and yes, there is a lock lever. But I tried that yesterday to no avail. Just tried it again now and it’s working no matter which way the lock lever is set!

[BurnUnit]

So... What kind of SD card are you using, and has it been properly formatted in the camera? Have you set the calendar and clock in the camera?

[kvbarkley]

Does it happen with both lenses? If you change the lens to manual focus?

[wq9nsc]

As Kvbarkley noted, this could be because the lens isn't focusing possibly because the AF switch on the lens was accidentally bumped to manual or the switch needed to be exercised a few times to clean its contacts.

Depending upon your camera settings, the shutter won't operate until the camera confirms focus has been achieved.

If this problem happens again, manually throw the lens well out of focus using the focus ring on the lens and then press the shutter button half way to see if it is pulling it back into focus.

Rodger

[RobertTheFat]

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@Diane74 wrote:

Hello all!

Allow me to begin by saying that I don’t have a clue about what I’m doing, so please be gentle!

I bought a lovely 77d a couple of years ago. The guy in the shop kindly set everything to auto and I’ve had no trouble since. I got the camera with the kit lens and I bought an additional 70-300mm lens which I use more often. 

Yesterday, I was at a horse show, happily taking shots and then I took it back out of the bag and it just wouldn’t work. 

I changed the memory card, took the battery out and then back in and removed and reattached the lens, but all to no avail. 

If you could give me some guidance I would be very grateful. Thank you! 

---

What the guy in the camera shop did for you will take you only so far. I'm afraid it's time to read the instruction manual. If that doesn't clarify the problem (and maybe even if it does), you may have to have the camera repaired.