Thanks for the guide. I really thought about doing this from the initial buy, and thus only equipped the Mac mini with 8GB of RAM. Now after about a year of running it I finally decided to do it. I watched the video for about a million times and read through the comments to be aware of the critical steps (mostly loosing the delicate cables). Bought the components (RAM from crucial, iFix It Tools and Magnetic Mat) and waited for a Saturday with nothing else to do and no disturbance.
The whole procedure took me about an hour. With only one minor issue (see my comment above on step 19). After reassembly I was really nervous while turning on the Mac, I was glad to see the LED starting to glow. When it took about 10 sec (more or less) after the Boot screen appears. and here it is, my upgraded Mac mini with 32GB for about €160 (including RAM, Tools and Mat).
