How can I complete "Revealing the Unseen" on the Xbox 360 version?

I have the same problem that this guy had: Why can't I focus the focus crystal?

The thing is that I play Skyrim on Xbox 360, and the solutions that were mentioned there were all solutions to the PC version.

Is there someone who knows how I can fix this bug on the 360? I don't have access to console commands or mods there.

Solution 1:

In general, a good thing to try is leaving the area, and waiting 5 in-game days, then going back and trying again. Things tend to reset themselves.

Make sure that you're using the base flame/frost spells, and not something higher-level. Make sure the buttons work to adjust the lenses. Watch the YouTube video highlighted in the other question to make sure you're targeting the correct crystal.

I play exclusively on the Xbox360, and haven't had any issues with this question in 3 separate play-throughs.