Hello,
I've received my cart before new year's eve and since that I couldn't get it to work.
Hardware: Unmodded Gameboy Color CGB-001; Board CGB-CPU-05; CPU with "D" letter
SD cards: new and used Sandisk Extreme 32GB, Sandisk Ultra 16GB (Red and White), Toshiba 8GB, Goodram 16GB and some...