Please note: The kit is sold as DIY and requires soldering skills, please make sure you are confident in installing before purchasing. The install instructions are below.
Please note that the Borti board has different pinouts to that are chips used in the guides. Please refer to the third picture in the listing and cross reference it to points on the Sega Mega Drive mainboard which are shown in the instructions below.
Mega Drive Model 1 – English (DIY version but same instructions apply): https://www.consolesunleashed.com/guides/sega-mega-drive-switchless-region-mod-install-guide/
Mega Drive model 2 – English (DIY version but same instructions apply): https://web.archive.org/web/20191109005540/http://www.mmmonkey.co.uk/console/sega/md2-switchless.htm
Original in German (use Google translate) [Post #3]:https://circuit-board.de/forum/index.php/Thread/14691-MD-Mod-PCBs-RGB-Bypass-Switchless-Mod-IGR-Mega-Amp/?s=e27e83c606893ada6d718be1eae4cee056c95c7