I just started setting up another new 1.0b smoothieboard. With nothing plugged into it other than usb and my sd card, I managed to get the firmware to flash. It renamed the firmware file on my card to FIRMWARE.CUR so I’m pretty sure that’s all good. When I power it on, I get LEDs 1 and 4 solid, and 2 and 3 flash for a few seconds, then either go solid on, or solid off, and the board doesn’t respond. I thought it might be my config so I tried a fresh, unmodified config file from the example config, with no change. I do have a 5v regulator soldered on board, but I don’t have my 24v power supply plugged in yet. I’ve also tried 3 different, formatted sd cards with the same result. I just tried flashing firmware again, and this time it didn’t make it through the flashing light flashing process before locking up.
Any ideas what could be wrong?