RE: Prusa is not recognizing my SD card. What to do?
There is a size limitation - perhaps your card capacity is too large? Try a different SD - small capacity ones work the best since you really can't select effectively if the SD card has many many files on it anyway.
RE: Prusa is not recognizing my SD card. What to do?
I don't think that is an SD card error message. I seem to recall that languages are stored in the boards external flash. If its having issues accessing the external flash then I would expect something like that.
I'd try reflashing the board.
RE: Prusa is not recognizing my SD card. What to do?
I was actually trying to connect adafruit feather to Prusa board and the adafruit MCU was burned. After that time, I started having this problem. So it could be that Prusa Circuit board is damaged. Doesn't look like a SD size problem. Do you guys think that its better to replace the PCB? I wonder if I can get a replacement from Prusa company.