Hi Slothod,
Thank you for posting.
If you're unable to see anything in your camera's display (and the lens cap is off), your camera will require service to correct this issue. You may set up the repair of your camera at this site: https://www.usa.canon.com/repair. When accessing our site, we recommend the use of updated versions of the Chrome or Firefox browsers.
Once on our site, click on "Request Product Repair". On the next page, begin entering your camera's model, then select the appropriate model, when it appears below. Next, fill in the information on this page, and those that follow.
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