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New Contributor
Posts: 1
Registered: ‎05-05-2017

Re: 70D froze up and now won't turn on after removing battery

Was the same problem too.

Honored Contributor
Posts: 5,607
Registered: ‎08-13-2015

Re: 70D froze up and now won't turn on after removing battery

I have noticed that Canon just recently released a firmware update for the 7D Mark II, which corrects a couple of issues.  One of the issues that the update is said to correct are certain combinations of settings causing "ERR 70".  The release notes did not identify what combinations can cause issues/

I suppose the lesson to be gleaned here is that a thorough reset of the camera bodies can clear the perfect storm of settings that apparently can cause the camera bodies to just simply lose it.  A thorough resets must be performed in at least three places in the menus.  For example, doing a "restore factory defaults" doesn't clear custom buttons, which have their own reset function.

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"I don't rent software. I use Photoshop CS6, ACR 9.8 and Lightroom 6.8 ."
Occasional Contributor
Posts: 9
Registered: ‎06-20-2014

Re: 70D froze up and now won't turn on after removing battery

Had to send camera in for repairs to Canon. Was told they had to replace main circuit board. Camera is less than a year old. Not a very good sign from Canon.

Occasional Contributor
Posts: 9
Registered: ‎06-20-2014

Re: 70D froze up and now won't turn on after removing battery

This problem seem to start in the video or live mode more often. Had to send camera in to Canon for repairs. Service said the main pc board was bad and need replacing. It is @ a $380.00 repair. My camera was less than 2 years old but still under warantee. Glad I had the extended warantee.

Occasional Contributor
Posts: 9
Registered: ‎06-20-2014

Re: 70D froze up and now won't turn on after removing battery

About $375.00+ thru Canon. Main cpu board seem to be the problem. Waiting on mine to return from Canon. Dissappointed since the camera is less than 2 years old with modorate usuage. Did have the extended waranty.

Had a similar problem with my EOS 50D (Err30) and repair bill about the same.

New Contributor
Posts: 3
Registered: ‎06-09-2017

Re: 70D froze up and now won't turn on after removing battery

So, you can add me to the list of many users having the same issue. This body was only a year and a half old, light use as it was a secondary camera. I was filming a wedding, switching back and forth from two different 70Ds to give one a break. The longest recording was the actual service about 12 minutes running time. The other clips were 30seconds at best. It's very discouraging to see so many issues and Canon not address it with some sort of recall.  As with most users, it looks as if the PCB board is now hosed. I saw the critical error code and the camera wouldn’t shut down, so I pulled out the battery and finished with the other camera.  I’m torn as to replace the camera with an actual video camera and chock this up as lessons learned and jump ship from Canon and start looking at Sony or FujiFilm’s mirrorless units, but I have all this nice glass, ugggh!!! #Canonsbigletdown #criticalerror 

 

So now I am watching videos how to swap out the mother board and debating spending the a bit less for one of them vs the cost of a pricey repair. 

 

Click here for YouTube 70D repair vid

Honored Contributor
Posts: 5,607
Registered: ‎08-13-2015

Re: 70D froze up and now won't turn on after removing battery


RoosterStudios wrote:

So, you can add me to the list of many users having the same issue. This body was only a year and a half old, light use as it was a secondary camera. I was filming a wedding, switching back and forth from two different 70Ds to give one a break. The longest recording was the actual service about 12 minutes running time. The other clips were 30seconds at best. It's very discouraging to see so many issues and Canon not address it with some sort of recall.  As with most users, it looks as if the PCB board is now hosed. I saw the critical error code and the camera wouldn’t shut down, so I pulled out the battery and finished with the other camera.  I’m torn as to replace the camera with an actual video camera and chock this up as lessons learned and jump ship from Canon and start looking at Sony or FujiFilm’s mirrorless units, but I have all this nice glass, ugggh!!! #Canonsbigletdown #criticalerror 

 

So now I am watching videos how to swap out the mother board and debating spending the a bit less for one of them vs the cost of a pricey repair. 

 

Click here for YouTube 70D repair vid


Not unless you have the experience and the proper tools already on hand, I would leave any repairs to professionals.

Before you jump ship, be aware that people have all of the same complaints about other brands.  The most common problem seems to be DSLR overheating, and Canon models seem be the least susceptible.  If you want a video camera, then buy a video camera.  Even thought a video camera can capture stills, would you use it to capture still photos?

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"I don't rent software. I use Photoshop CS6, ACR 9.8 and Lightroom 6.8 ."
New Contributor
Posts: 3
Registered: ‎06-09-2017

Re: 70D froze up and now won't turn on after removing battery

I’m not too worried (optomistic as I've yet to try it) about the dynamics of the hardware, I used to building computers and small repairs to laptops some years ago, seems pretty strait forward, the only concern I have is the smallness of the mother board and flexible data ribbons, if only I had the size of hands I had when I was 10. 

 

15 flex ribbons

4 wire harnesses

1 optical 

1 microscopic battery

 

Now, any recommendations as to where to purchase said motherboard for the states?

Occasional Contributor
Posts: 9
Registered: ‎06-11-2017

Re: 70D froze up and now won't turn on after removing battery

I'm just wondering if you ever got the issue resolved. My 70D was working fine then suddenly just quit and won't turn on anymore. 

Occasional Contributor
Posts: 9
Registered: ‎06-20-2014

Re: 70D froze up and now won't turn on after removing battery

Seems that most of these digital cameras have similar problems. @ 2.5 year life. Similar to the cell phones. Too expensive to repair so we find ourselves just buying new ones. I'm sure Sony have similar issues since the same company is probably making their motherboard also.
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