see update below.
suddenly my EOS 700D freezes in live view or in video recording mode. Sometimes the live view shows a still image that is several seconds old and is not updated, sometimes the still image contains pixel error patterns. And sometimes the display only shows a colorful gibberish. Taking photos still works fine, in both live view and non-live view modes. After 30 seconds – 1 minute in live view mode, the camera locks completely (only removing the battery works). Recording videos does not work, the video duration remains at 0:00.
Oddly enough, the display of photos and all menus work properly, so it's definitely not a display error. I have just updated the firmware to the latest version (1.1.4 -> 1.1.5) and tried a different lens – to no avail. Both lenses and the SD card work in my EOS 600D.
Unfortunately my camera has an 8 day guarantee, so I have the feeling that this error was fixed (although it is probably just bad luck).
Any ideas what could be causing this error, and maybe how to diagnose / fix it? Here are some pictures.
Thanks in advance, Lukas
TO UPDATE: It has been several months since the original errors occurred and I would like to update you on how the problem has developed afterwards, in the hope that it can help someone.
The camera worked flawlessly, at least for RAW + JPEG pictures without a live image. At some point, even the live view and video mode worked again, so I was already relieved and thought that the problem was solved.
But then, unfortunately two weeks ago, the problems got worse again: suddenly the camera blocked even with normal RAW + JPEG shots through the viewfinder. The video and live view mode also no longer worked. Reinstalling the firmware or formatting / changing the SD card had no effect. I found that RAW-only mode works as expected even with fast shots while locking the camera in every JPEG mode.
For another week, the camera worked flawlessly in RAW-only mode until now, when fast shots even in RAW-only mode caused the camera to crash. This now makes the camera pretty unusable, which is sad since the photos are still fine and the camera is not very old. I have to consider repairs and expect high costs.
UPDATE 2: I still use the camera without repairs. It works reliably in RAW mode, the JPEG mode sometimes even works for weeks and then stops working for weeks. Using live image or video mode appears to kill the camera within minutes, causing everything except RAW to stop working for weeks. But I can do without JPEG and stay with RAW instead of paying the repair cost.
Display shows colorful gibberish
The display shows an old still image with pixel errors
Camera completely locked (no menus / buttons / power switch work)