Canon EOS Rebel T3i 18-55mm IS II Lens Kit - Manual (Page 284)

Troubleshooting Guide
284
If the LCD monitor is dirty, use a soft cloth to clean it.
In low or high temperatures, the LCD monitor display may seem slow
or might look black. It will return to normal at room temperature.
It is the highlight alert (p.228). Overexposed highlight areas with a loss
of highlight detail will blink.
If the image has been protected, it cannot be erased (p.222).
Movies edited with a personal computer using the provided
ZoomBrowser EX/ImageBrowser (p.302) or other software cannot be
played with the camera. However, video snapshot albums edited with
ZoomBrowser EX/ImageBrowser can be played on the camera.
If you operate the camera’s dials or lens during movie shooting, the
operation noise will also be recorded. Use an external microphone
(commercially available) (p.160).
During autoexposure movie shooting, if there is a drastic change in the
exposure level, the recording will stop momentarily until the brightness
stabilizes. If this happens, use manual exposure (p.144).
Playback Problems
The LCD monitor does not display a clear image.
Part of the image blinks in black.
The image cannot be erased.
The movie cannot play.
When the movie is played, camera operation noise can be
heard.
The movie has still moments.
COP
Y