How to "reboot" your Canon DSLR

RTPVid wrote in post #14698382
Starting with the Rebel XSi / 450D, the Rebel / xxxD series no longer uses a memory battery, at least not one that is user accessible.

Gotta back up RTPVid on this one. I had an XSi and a T1i. Neither of them had a user accessible D/T battery.

TSchrief wrote in post #15308201
Gotta back up RTPVid on this one. I had an XSi and a T1i. Neither of them had a user accessible D/T battery.

Neither does the T2i. T3i, or T4i.

Great write up. Thanks

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Thanks for the info
but where can i find the little silver memory battery ?
any photos
just to know
Thanks

moltengold wrote in post #16765727
Thanks for the info but where can i find the little silver memory battery ?

This is for the Mk Ii but is likely the same as the III, which your profile says you own.

http://www.ifixit.com …+battery+Replac​ement/5012

thanks Alan

Thanks for posting this Alan!

FlyingPhotog wrote in post #14697888
Pay very close attention to the orientation of the button battery when you pull it...

You'll make yourself crazy wondering what's wrong if you put it back in the wrong orientation!

Personal experience?

John from PA wrote in post #16765819
This is for the Mk Ii but is likely the same as the III, which your profile says you own.

http://www.ifixit.com …+battery+Replac​ement/5012

Thanks a lot John

Great post, but jeesus, there's gotta be an easier way.

Gobeatty wrote in post #16766125
there's gotta be an easier way.

removing batteries from a camera, im not sure you can get an easier than that, except maybe have your neighbor do it while you sip your icy beverage of choice..?

apersson850 wrote in post #15308150
Sprocedures like the one described above is a waste of time, since clearing the camera's settings would do the same thing, but quicker, and if that doesn't help, then most likely this will not either. It would have been totally different if the camera was dependent on the backup battery to store its settings, not just to keep the clock running.

plenty of folks have said doing this helped them get clearer images.. so for free and not much hassle it’s an easy thing to try.

So I got a used 5D mk iii from B&H that the LCD was not waking up from pressing the shutter.

I followed your instructions and went with the over-night method. Voilà! It worked!

I knew it did since the date and time was the first thing that came up.

However, at first I thought it didn't work. The 5D mk iii is slower than my 6D at waking up. The 6D is instant. The 5D mk iii needs the shutter down for at least a second or so.

I do have a question though, I found it odd that some of my custom settings were still there even if I did the Clear All Camera Settings. Even the previous owner's Copyright name was still there.

gossamer88 wrote in post #17635506
So I got a used 5D mk iii from B&H that the LCD was not waking up from pressing the shutter.

I followed your instructions and went with the over-night method. Voilà! It worked!

I knew it did since the date and time was the first thing that came up.

However, at first I thought it didn't work. The 5D mk iii is slower than my 6D at waking up. The 6D is instant. The 5D mk iii needs the shutter down for at least a second or so.

I do have a question though, I found it odd that some of my custom settings were still there even if I did the Clear All Camera Settings. Even the previous owner's Copyright name was still there.

Those settings are stored in non-volatile memory. They can only be changed in the menuing system.

This actually doesn't truly reboot the camera. In the 1-series bodies, doing this will clear some functions and dump the clock. However, most settings, like custom functions, remain. For example, set the owner's name/copyright/etc. You can do this all you want and it'll remain the same as when you started. The NVRAM stores quite a few settings for the camera. The only way to truly reboot the camera is to connect some proprietary software (that Canon seems to have at service) via the USB (or a JTAG like interface) and initiate a factory reset from there.

I somehow triggered mine by doing multiple flashes of the same firmware, but after downgrading the firmware to the previous version first, then going back up to the most recent. It didn't do anything the first time, but after a few more flashes of the newest, the firmware loader did the full reset for me.