Overcoming the odds to fix my BMW E30’s instrument cluster

I need to bypass the service indicator on my early BMW E30 to make the instrument cluster work again - but first I need to improve my soldering skills. Useful links: E30 Clusters (for parts and workshop manuals): https://e30clusters.com/ Tim’s Classic Parts (a range of 1970s/80s/90s BMW bits, including replacement SI board batteries): https://www.timsclassicparts.nl/ Chapters: 00:00 The problem 00:16 Fear and loathing of soldering 01:03 The cluster problem 02:48 Getting the clocks out 03:32 Soldering right 04:18 The SI board bypass 06:45 What about a proper fix? 07:27 Refitting is the reverse of removal