All, I did the dumbest thing, this morning. I made an update to whobee’s nice 3d printable case, and in the process of installing the Bolt, I let one of the wifi antenna leads touch the top of the board. I guess I’m lucky that all it did was to kill the Arduino, but I’m still disappointed in myself. I’ll post a link to my case updates, later. I revised the mounting method for the top of the case, and made room for a larger fan, to switch to a higher quality quieter one. The Arduino doesn’t appear as a USB device, anymore, so I suspect that it’s completely dead. Also, the heartbeat LED doesn’t blink, anymore. Oh, well. - Alex
Sorry to hear that. Don't know how dead it is. If hardware is dead (e.g., if the ATmega32u4 is super hot) then use an external Auduino board. If not... Try Arduino IDE method to recover Leonardo's bootloader. If not able to... Try using Arduino's ICSP interface (the purple colored pins, SPI leads) to program the ATmega32u4 chip. Google is your best friend.
Sorry to hear about that Alex. What Quiet Fans did you buy for your UDOO Bolt and was is easy to installed?
No change in the Arduino situation, unfortunately. The fan that I used is this one: https://smile.amazon.com/gp/product/B009NQMESS Attached are some pictures of the case, with my updates. I have also included the STLs, for anyone who would like to print their own. Here is a render of the assembled case: - Alex