04-09-2015 11:24 PM
Solved! Go to Solution.
02-25-2016 02:25 PM
My rebel t3i wouldnt turn on! Thougt it was the battery so I bought a new one. Didn't work. Read some post and thought maybe there was a loose connetcion where the battery goes or the memory card. If either one of those isn't secure it won't work. Not the case. It was my memory card, I has switched it from my Nikon to my Canon and it wouldn't work. I put the memory card into my Mac, deleted everything off of it, put the card back in and the camera works fine. Years of using cameras and I guess I am an idiot....but you don't switch memory cards back and forth unless you format them first. MY BAD.
Happy to have finally solved this problem and at no cost..except now I have a back up battery..which isn't a bad thing.
04-10-2015 10:02 AM
The second battery is internal to camera and not user replaceable. It is charged by the main battery.
Are sure that the two batteries are fully charged? A defective charger could indicate charge but not be charging.
04-12-2015 09:40 AM
Similar problem with my T2i, haven't used the camera for a while, charged the battery and menu display won't come on. When attempting to take a picture the flash will work as will the shutter, so it seems the battery is charged. Just no display.
04-14-2015 12:37 PM
The camera has two micro-switches to verify that the (a) memory card door and (b) battery compartment door are fully closed. There are some tabs on the doors which push on the respective door switches.
Check to make sure your doors have a good fit and that the tabs aren't damamged in any way are able to close completey.
If the switches are not engaged then the camera will not power up.
04-16-2015 10:32 PM
Thanks for the suggestion. That is not the problem with the T2i. I wonder if it is a faulty - old battery or bad memory card.
04-19-2015 12:01 AM
I just saw your post. I am having the same problem with my T3i. Just started a week ago.
10-31-2015 11:41 AM
10-31-2015 12:42 PM
I finally got a new battery that worked. Took one back to Best Buy and got another one at Staples. Some of those cheap ones from China are not worth the money. Give the new one plenty of time to charge before trying to use it. Good luck.
10-31-2015 12:59 PM
Buying third-party batteries is a real crap shoot. If I were going to do that, which I don't, I would stick with brands that are sold by the major camera retailers. They see enough product to weed out the poor performers.
12-20-2015 11:01 PM
Just had the same thing happen to me - my t3i won't turn on. Thought my battery had died, so charged it, but put in my back up battery knowing it had a full charge, and that wouldn't work either. Charged both, and my camera won't turn stay on. Goes on for a split second then shuts off right after. What do I do now? I got it the beginning of 2012, and take excellent care of it, so...
02/20/2025: New firmware updates are available.
RF70-200mm F2.8 L IS USM Z - Version 1.0.6
RF24-105mm F2.8 L IS USM Z - Version 1.0.9
RF100-300mm F2.8 L IS USM - Version 1.0.8
RF50mm F1.4 L VCM - Version 1.0.2
RF24mm F1.4 L VCM - Version 1.0.3
01/27/2025: New firmware updates are available.
12/18/2024: New firmware updates are available.
EOS C300 Mark III - Version 1..0.9.1
EOS C500 Mark II - Version 1.1.3.1
12/05/2024: New firmware updates are available.
EOS R5 Mark II - Version 1.0.2
09/26/2024: New firmware updates are available.
Canon U.S.A Inc. All Rights Reserved. Reproduction in whole or part without permission is prohibited.