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Occasional Contributor
Posts: 6
Registered: ‎02-22-2018

EOS70d- Can you Help? Black viewfinder screen. No shutter actuation.. No takey pics...

I handed my 70d over to my sister to take a shot and when she took it from me an error message flashed and it pretty much quit working. I'm hoping she just pressed some menu item or button by mistake! The msg flashed so quick there was no time to make note what it said. I was given back a camera with a black screen on the back; so now I can't navigate through any menus to find out what happened. There is also no shutter actuation when shutter button is pressed. I've changed out lenses. I've charged battery. Nothing. However, on the top nav window I can see I have a full battery, and can nav thru all the settings available, in both video and camera mode. So, I at least know the camera is alive to some extent. I've searched but cant find any subject covering this. Any ideas?? Here's a few photos of said camera. Also, dont know if my mirror is locked...could that make my camera behave like this? Thanks for any help. I miss my baby.28235418_10212713338281785_1346329982139683750_o.jpg

28235418_10212713338281785_1346329982139683750_o.jpg

 

28335918_10212713338321786_2217084116104111168_o.jpg

 

Esteemed Contributor
Posts: 2,394
Registered: ‎02-17-2016

Re: EOS70d- Can you Help? Black viewfinder screen. No shutter actuation.. No takey pics...

Have you tried pressing the info button?

Occasional Contributor
Posts: 6
Registered: ‎02-22-2018

Re: EOS70d- Can you Help? Black viewfinder screen. No shutter actuation.. No takey pics...

Yes- tried that. No matter which button I push, nothing illuminates on the backscreen. Nor on the internal viewfinder menu. Only the top external LCD do I find any similance of life. And that doesnt access menu.

Esteemed Contributor
Posts: 2,394
Registered: ‎02-17-2016

Re: EOS70d- Can you Help? Black viewfinder screen. No shutter actuation.. No takey pics...

Have you tried hooking up an HDMI cable?

 

Have you tried reseating or removing the eyecup? The eye sensor might be blocked.

Respected Contributor
Posts: 1,847
Registered: ‎12-02-2012

Re: EOS70d- Can you Help? Black viewfinder screen. No shutter actuation.. No takey pics...

Toggle the switch that surrounds the START/STOP button on the back.  

Scott

Canon 5d mk 4, Canon 6D, EF 70-200mm L f/2.8 IS mk2; EF 16-35 f/2.8 L mk. III; Sigma 35mm f/1.4 "Art" EF 100mm f/2.8L Macro; EF 85mm f/1.8; EF 1.4x extender mk. 3; EF 24-105 f/4 L; EF-S 17-55mm f/2.8 IS; 3x Phottix Mitros+ speedlites

Why do so many people say "FER-tographer"? Do they take "fertographs"?
Valued Contributor
Posts: 390
Registered: ‎11-19-2017

Re: EOS70d- Can you Help? Black viewfinder screen. No shutter actuation.. No takey pics...

Afraid this is going to be another controller board failure 

Rick
Bay Area - CA
~6D2 (f/w 1.0.3) ~16-35mm f2.8L II, 50 f1.8 STM, 85 prime, 70-200 f2.8L IS II ~Sigma 24-70 f2.8 Art (f/w 2.0) ~Sigma 150-600 C + TC1401 1.4x (f/w 1.03) ~Speedlite 430 EX II ~DxO PhotoLab Elite ~DPP 4.8.20 ~Windows10 Pro nVidia GPU 1803 ~Android 8.1
Respected Contributor
Posts: 1,847
Registered: ‎12-02-2012

Re: EOS70d- Can you Help? Black viewfinder screen. No shutter actuation.. No takey pics...

1.) Try hitting info repeatedly. It cycles through settings. 

 

2.) There is on most models a sensor that knows when your face is pressed up to the back of the camera, and it turns the LCD off when the camera is on your face. The sensor can become blocked by dirt or makeup, or by the eyecup sliding up a couple of millimeters and blocking the sensor. In both cases the sensor is fooled into thinking your face is pressed onto the camera and it turns the LCD off. Try removing the eyecup and wiping the area clean between the eyecup and the hot shoe. 

Scott

Canon 5d mk 4, Canon 6D, EF 70-200mm L f/2.8 IS mk2; EF 16-35 f/2.8 L mk. III; Sigma 35mm f/1.4 "Art" EF 100mm f/2.8L Macro; EF 85mm f/1.8; EF 1.4x extender mk. 3; EF 24-105 f/4 L; EF-S 17-55mm f/2.8 IS; 3x Phottix Mitros+ speedlites

Why do so many people say "FER-tographer"? Do they take "fertographs"?
Occasional Contributor
Posts: 6
Registered: ‎02-22-2018

Re: EOS70d- Can you Help? Black viewfinder screen. No shutter actuation.. No takey pics...

[ Edited ]

Appreciate all the ideas, thanks!!

 

Ok, so I've toggled the camera/vid selector around the start/stop= nothing

Tapped the info button, repeatedly, nothing.

 

I removed and cleaned around the eye cup (didnt see the sensor)... but even if that sensor was defective, that shouldnt stop the shutter from firing. It doesnt disengage the shutter when your face is pressed against the camera, under normal circumstances.

 

I havent hooked up an hdmi from camera to computer yet, but am not sure what to do when i do.

I've only ever used that connection to transfer images. Will that allow me to access other camera functions? 

What should i be looking for? Thanks.

Respected Contributor
Posts: 1,847
Registered: ‎12-02-2012

Re: EOS70d- Can you Help? Black viewfinder screen. No shutter actuation.. No takey pics...

You're going to have to hypnotize your sister so she can remember what switch she flipped when you handed her the camera. 

Scott

Canon 5d mk 4, Canon 6D, EF 70-200mm L f/2.8 IS mk2; EF 16-35 f/2.8 L mk. III; Sigma 35mm f/1.4 "Art" EF 100mm f/2.8L Macro; EF 85mm f/1.8; EF 1.4x extender mk. 3; EF 24-105 f/4 L; EF-S 17-55mm f/2.8 IS; 3x Phottix Mitros+ speedlites

Why do so many people say "FER-tographer"? Do they take "fertographs"?
Esteemed Contributor
Posts: 2,394
Registered: ‎02-17-2016

Re: EOS70d- Can you Help? Black viewfinder screen. No shutter actuation.. No takey pics...

[ Edited ]

HDMI, not usb! The HDMI is just a mirror of the LCD. If the LCD is broken, but the display system works, it should show up via HDMI. It is just like hooking up an external monitor to a laptop.

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