Wiko Rainbow CM13 Flash tutorial, bug fixing and other Cyanogen & Android related stuff

I recently flashed Cyanogen CM 13 onto my Wiko Rainbow. You can find the tutorial here: Wiko Rainbow CM13 Rom Installation.  It ran pretty well - until I woke up and it was dead. More then dead. No lights, no charging - plain nothing. Even though I thought my smartphone was gone forever, I tryed to fix it - without knowing whats up. And.... I succeded. You can read about that here: Fixing a dead Wiko Rainbo. While doing so, I set up a small tutorial on how to install the right ADB-  and / or