I'm a little bit scared of making a mess of upgrading my firmware to Ver 1.0.5-R2 so that I can employ auto-leveling. I have watched Zennmaster's videos and downloaded his instructions from his blog, but I am wondering if there are any traps that I should be aware of while I prepare my Configuration.h file for flashing.

Can anyone put my mind at ease, please?

Old Man Emu