The funny thing is if i solder the card reader to the Pi and put microSD card into Pi nothing happend. If i desolder the card reader and resolder it except 2 cables of SD-pin 5 and 7 to the Pi on PP14 and PP17 it boots with the SD-card in the cardreader of the Pi. The SD card holder is a former GB s...

I tried to do the same thing like in the blog and attached the GB card reader to the Pi. Double checked the wiring and so on but when the GB card reader (just card reader, no game/sd card inside) is attached to the Pi it wont boot at all.

Any ideas why or how to clear the problem?

Time had told ^^ I soldered two short cords and tried each leg. In this point of view the upper right leg of each one is GND and then i conected a monitor and looked when it worked. When i conected it like in the picture i got a nice screen. In the picture black/gray is GND and red/orange is 5V, yel...

Finaly the TFT got deliverd after one month of waiting and everything fit perfectly for Gameboy Zero but the TFT got a other mainboard

There are two Kondensators with 4 legs on each side but which one do i have to remove??

I'm happy to get some usefull answers!