A simple video showing how install Magic Lantern onto a Canon EOS 550D and using Trandscend 32gb Class 10 card, which is a pretty good combinations for this. Because first I did no know if they would work cause certain brand or SDHC card does not really work for the Magic Lantern, but however its perfectly fine with the Trandscend.
Just make sure before installing:
- Have a full battery.
- Lens on the camera.
- Camera set on M or AV
And it should all be fine and very simple to install onto your camera without too many hassle and too much steps.
Link below to find the Magic Lantern firmware and more info: