T3i stuck on "sensor cleaning" screen!

[mrscruise]

I haven't used my camera in about a month and today I turned it on and none of the buttons would work. The screen was just frozen but the "sensor cleaning" icon was flashing. It didn't even turn off. I had to remove the battery. Now, it's stuck on the "off" screen where is says "sensor cleaning". To turn it off, I still have to remove the battery (I have an external battery on it). Help?!

[ebiggs1]

"(I have an external battery on it)."   

As in a battery grip or a AC adapter?  If a battery grip and it is an off-brand get rid of it.  Remove it and install a new Canon brand battery.  If it is the AC adapter do the same.

[zadams]

HAve you figured anything else out with this issue? I have been having the same trouble and can't find anything anywhere.

[ebiggs1]

In his case it may be the grip.  Third party grips are notoriously bad.  Do you have one as well?

[zadams]

No. It is a factory new camera. No additions except a uv filter.

[ebiggs1]

Did you do a "Clear all settings"?  Do so.

[zadams]

I did. No change. I have to remove the battery to turn it off and when I turn it back on it indicates sensor cleaning again. Unless I have the memory card compartment open when I turn it on. Then it starts up fine.

[ebiggs1]

I am no fortune teller but, I believe Canon service is in your future.