Did you already flash the Arduino with the Cart Reader.ino code?If yes can you post more pictures of the Cart Reader PCB? And can you measure the resistance between 5V and GND while the Cart Reader is turned off using a multimeter? Just to make sure there is no short circuit.
And just to be sure meassure between a VCC pin and GND using the diode test too.
@DieKatzchen Please see my PM tooI seemingly haven't been noticed, although I was a bit later than you. Did you get a response? Thanks!Edit: Ah, I checked my forum settings and the defaults don't notify through email, so that probably explains it.
I've replied to you, and also turned on notifications. Sorry for the delay, you're on the list. For anyone else on the list, I will be ordering the last parts (the cart connectors, incidentally) over the next few weeks.
Could be the SD card. Since the ROM is fine your Cart Reader probably works ok but when reading the ROM back from the SD card it gets read errors. You can test this theory by reducing the sdSpeed in Cart Reader.ino from SPI_FULL_SPEED to SPI_HALF_SPEED and reupload the code afterwards:Or by trying out another SD card preferably made by Sandisk.