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Please read!! (If you don't read this and you come back later saying your camera won't turn on, then.
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Canon Firmware: Official_Canon_550D_1.0.9_firmware.We are not responsible for any damages to your camera. Warning! Magic Lantern is not approved nor endorsed by Canon in any way, and using it will probably void your warranty. The original tutorial I followed can be found here: This tutorial is based off my memory of the first time I installed ML (and how I put ML on any new card). Magic Lantern Installation & Updating Guide
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