I have been wrecking my brain all weekend over this and cannot get my printer to work. I have just recently updated my firmware from a very old version (not sure of the number but it was complied in 2014) to the latest 0.92.9. My main reason for doing that was that I needed to configure a new thermistor type for my E3D V6 clone as my old firmware did not have the NTC 3950 100K option.
To populate the 0.92.9 version I used the online configuration tool and dropped in my old firmware configuration.h file. I only changed my thermistor and downloaded.
I have flashed my board and re calibrated. I was just about to hit print when I have now run into the 'SD init failed' error and my SD is displaying blank on the LCD controller.
Board is a Arduio Due with RADDS shield. Also using the RADDS LCD controller 40x20. SD Card is the same SD Card I have been using for years on that machine - 8GB SDHC, Formatted to FAT32. Also there are no other SD cards or Micro SD card plugged in to any of the other ports.
I have also tried re formatting the card tonight too but that did not make a difference.
I have googled this issue a lot tonight and there seems to be quite a few people with the same problem but I am yet to see a solution.