After some research I found this guide by PeterVH: http://petervanhoyweghen.wordpress.com/2012/09/16/arduinoisp-on-the-leonardo/
After several failed attempts, I was able to burn the bootloader and upload sketches successfully and wanted to share that with this Instructable.
I can not be held responsible for any damages that could occur to you or your equipment while following the procedures present on this page. Also, I give absolutely no warranty on the correctness and usability of the information on this Instructable. Please note, however, that these procedures have worked in my case without any damages or problems.
Step 1: Materials
- A computer (all steps are based on computer running Windows)
- Target Atmel microcontroller