[JeffElkins]

Originally Posted by porkupan

All the other methods are also quite safe, but they may require a little more work to get the Cyrillic fonts installed in your unit. But then you can read pretty much any text, as long as it is in Unicode.

For Unicode fonts with Cyrillic support and Russian localization among other languages (created by porkupan) I think PRSCustomizer is a reasonably easy solution for the 505. It also provides several other optional hacks.