Author Topic: 70d does not want to turn on - raised mirror  (Read 155 times)

yokashin

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70d does not want to turn on - raised mirror
« on: June 23, 2018, 08:45:52 AM »
Good morning,

Does anyone have any idea to run my 70d?
I was at the concert yesterday.
I took pictures and recorded videos for 5 minutes.
Suddenly, the camera hangs after you finish recording the movie.
The video file has been saved correctly.

I have an SD card magiclantern-Nightly.2018Feb17.70D112.
I recorded the movies normally from the Canon menu.

The camera will not turn on.
No messages on the screen.
I tried to remove the SD card and battery.
The LED blinks once only when inserting the batteries.

After removing the lens I found that I have a raised mirror and a curtained shutter - no matrix is visible.

Walter Schulz

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Re: 70d does not want to turn on - raised mirror
« Reply #1 on: June 23, 2018, 07:05:43 PM »
Backup card's ROM0.BIN and ROM1.BIN. Don't skip this step!
Backup/rename card's autoexec.bin and replace it by Portable display test autoexec.bin.
Then remove battery, insert card, insert battery. Report results.

ArcziPL

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Re: 70d does not want to turn on - raised mirror
« Reply #2 on: June 23, 2018, 07:19:35 PM »
Does the top LCD show anything, when you turn the camera on?
70D.112 | 700D.115 | M.202 | 450D.110

yokashin

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Re: 70d does not want to turn on - raised mirror
« Reply #3 on: Yesterday at 09:50:56 AM »
Thank you for the response.

After putting the betery into the camera, which is turned off, I can not see anything on both displays. Turning on the camera does not change anything.
If I put the battery in the camera that is turned on, information appears on the small screen that was visible before the fault.




Turning the camera off does not disable this screen.




View of the raised mirror.





Nothing is displayed on the main screen.

yokashin

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Re: 70d does not want to turn on - raised mirror
« Reply #4 on: Yesterday at 10:24:01 AM »
Running the camera with the modified autoexec.bin only causes a momentary flashing of the screen.
The screen starts only when the batteries are inserted into the camera with the switch in the ON position.

https://youtu.be/PTD2ojYzUt8

Walter Schulz

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Re: 70d does not want to turn on - raised mirror
« Reply #5 on: Yesterday at 10:40:22 AM »
It's up to a1ex for a final verdict but it looks like you have a serious hardware problem.
This diagnostic autoexec.bin uses very basic functions only (bypassing most of Canon's stuff) and should simply not work this way.

MOD: Please move thread to Camera Emergency Department.

a1ex

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Re: 70d does not want to turn on - raised mirror
« Reply #6 on: Yesterday at 11:00:22 AM »
Right, pretty sure it's a hardware issue.

Levas

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Re: 70d does not want to turn on - raised mirror
« Reply #7 on: Yesterday at 11:18:17 AM »
Not an expert myself on this.
But it could be that the mirror is stuck.
If this was my own camera, I would definately try if I could lower the mirror with some light finger push...
With the emphasize on light push, don’t force it, just check if it is something small that’s keeping the mirror up(as far as I know, mirror always falls down when battery is pulled. So most logiccaly something is blocking the mirror on it’s way down.

But like I said, no expert, just something I would try if it was my cam.